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Update: A Valve employee took to reddit to counter what was said in the bug report:

Hi! Valve employee here. The bug report is incorrect. VAC will not ban you for simply having catbot in your user name (either your steam profile or on one or more of your linux accounts).

The bug report--and I suspect many of the posts in this thread--are a tactic employed by cheaters to try and sow discord and distrust among anticheat systems.

VAC has many different types of detections and we cannot discuss what they do publicly because doing so makes them less effective. However, one thing I can disclose is that all detections require that the detection occur while a user is actively cheating and connected to a VAC-secured server.

Linux historically hasn't been a problem for cheating--the base rate of cheating is significantly lower on Linux than it is on Windows. Unfortunately, a "healthy" community of cheaters grew up around catbot on linux and their impact on TF became large enough that they simply could no longer be ignored. Those banned users are very annoyed that VAC has dropped the hammer on them.

Kisak moderates many of valve's github bug repositories for us in an attempt to keep the bugs high quality and actionable. The VAC team asked him to close the issue in question and to indicate that github was not an appropriate location to discuss VAC bans. He did so, and we support this action.

For proof that I am a Valve employee, you can check my posting flair in the other subs I post on (/r/CSGO and /r/tf2) or a mod can message me and we can work on confirmation using my work email and PMs.

So in this case what Valve is doing is fine. They're getting rid of cheaters and that's how it should be.

Original article

Happy New Year! Let's start 2018 with a bit of a joke shall we: Knock Knock. Who's there? Catbot. Banned.

It seems one user came across an unfortunate issue playing Team Fortress 2 on Steam, as they were VAC banned for having their Linux desktop username contain "catbot".

I can certainly understand when a bot comes along, if it uses something so easily identifiable then as a quick temporary solution you could ban it like that until it's fixed. However, that's obviously not a good long-term solution and will (like in this case) cause an issue for users. It's not even a good short-term solution, considering how many millions of possibilities there are for a username to have "catbot" in there somewhere. Going by usernames just isn't a good idea, it's just not. Why is it not? Bots can just use random names, then this doesn't even become a temporary fix, it becomes useless.

This is what Valve replied with:

Good day, I've received word from the VAC team that this is intentional and not open for discussion on Github.

In general VAC issues are not handled on Github in any capacity and further issue reports on this may result in being banned from the Valve Software issue trackers.

Ouch. I get why they don't want their GitHub filling up with VAC issues (it's not the right place after all), but threatening a ban just like that, without any suggestions on what the user could do is a bit harsh don't you think? Considering this GitHub request is talking about bans, to then threaten a ban from the Valve GitHub trackers—come on.

Valve has done a lot of good for Linux gaming and continues to do so, but I think it's still important to highlight issues, even if they are on the stupid side.

Article taken from GamingOnLinux.com.
Tags: Editorial, Steam
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jens 1 Jan 2018
  • Supporter
you are outright bashing users of other services and stores
Do you actually see that you are doing exactly this?

I gave you that advice earlier when you were attacking Feral without ever having owned one of their games: "Get a beer and take a deep breath". Same advice here with Valve.
johndoe 1 Jan 2018
Common guys, stop this childish Valve vs GOG wars.

Stupidity does not protect against punishment.
And in the end these guys (guilty or not) are only banned from TF2 - they are still alive, are not hurt, do not suffer from hunger, ... but are simply dumb.

Assumed I invented wannacry. Should I use "wannacry" as my private/public linux/unix account?!
tonR 1 Jan 2018
IMO, Valve is doing great job for Linux gaming (not denying other community/developers/companies contribution either). But! it is doesn't mean that Valve (or any companies) gets free pass to do something silly like this that undermined Linux or any gaming community as whole.

Sometimes i wish to turn back to these dark days, before 2013. Valve does not deserve these kind of treatment.
Me, before Linux (2014): Ahoy pirates, let's sailing the torrent seas! (seriously I don't want pirating anymore)

Common guys, stop this childish Valve vs GOG wars.
As me currently exploring GOG and itch.io, I agree with that.
johndoe 1 Jan 2018
Well, if you want to cry about it, sure. It's your party, can cry if you want to.

Seriously though, probably best to wait and see how it realky goes. Banning without warning for a bit of username fun is bad, but I can't say if that really happened or not.

Now I'm confused.
Do you know what "wannacry" is/was?
It is/was a malware which encrypted thousands of windows computers in may 2017.

Maybe I should have used "sambacry" (linux version of wannacry) or something even more worse like the name of this austrian dictator who killed countless jewish people in ww2 to fortify my last assumption?
johndoe 1 Jan 2018
Woooooosssshhhh!
The sound of the joke flying by over your head. Listen to broader music - I'll let you google around to figure it out.

Oh, and leave that Godwin's Law crap at home. Makes you sound about 12. And a disrepectful 12 year old at that.

No, thank you.
I'm 42 years old, have a wife and wonderful two kids I have to take care.
No time to listen to music made for kids.

And thank you for your kindness.
Luke_Nukem 1 Jan 2018
Honestly, why would a person using a bot actually name it in such an obvious way?
Samsai 1 Jan 2018
  • Editor
  • Supporter Plus
Maybe I should have used "sambacry" (linux version of wannacry) or something even more worse like the name of this austrian dictator who killed countless jewish people in ww2 to fortify my last assumption?
"Catbot" is literally Hitler now. Logic checks out.
GNU/Linux users can afford to ditch Valve. Something else would fill the void, quite easily.
It was literally decades before Valve filled the void in the first place. If we abandon Valve, how many more decades will we wait before someone else replaces them?

Valve only did anything as a backup plan. Gaming was growing before they did anything, even desura was there first. If Valve get uppity, I would simply go elsewhere. Power is with the users in the end, and it's good to remind companies of this sometimes.
I think you're a bit naive about this. Microsoft does not retain a desktop monopoly more than 20 years after Win95 because power is with the users in the end. Well, maybe "in the end"--as Keynes said about market equilibrium in the long run, "In the long run, we are all dead".
Monopoly power exists. Perhaps equally important, network effects are powerful; every major network* that the Linux platform is shut out of reinforces its status as a second-class citizen. Steam is a very major network; deliberately shutting ourselves out of it would reinforce the status of Linux as a second class citizen. That would be a really stupid strategic move if one wants Linux use on the desktop to prosper.

Not that any of this matters. Vanishingly few people are going to leave Steam because of something like this; calling for a boycott is an irrelevance.


* "Network" should be taken very broadly here to include any software ecosystem thingie that people on other platforms can and do use a lot. So for instance, MS Office, or DirectX. That's why it would be good if Vulkan supplanted DirectX 12, and it's good that Office runs on Wine (even though I personally don't like Office and never use it outside of work).

Microsoft may dominate desktop right now. They did so in the server space once upon a time. Funny what happened there.
You are mistaken. MS never had a server monopoly or even very close. Unix was always big; Linux just gradually became the biggest Unix.
The major reason MS were unable to establish such a monopoly was that they sucked so bad as a server for a number of years that the differences were readily measurable in money. That's much more difficult to establish on the desktop.
The situations are not remotely comparable.
But if you want a comparison, server Linux did not prosper by doing things like reject Samba. Desktop Linux will not prosper by doing things like reject Steam (or for that matter GoG's Galaxy if we can get our mitts on it). Not that you personally should use it if it doesn't fit your needs.
Guest 1 Jan 2018
"Catbot" is literally Hitler now. Logic checks out.

Do we need a Dogbot to fight catbot ?

Release the hounds of war!
Guest 1 Jan 2018
I personally have all the rights to ditch Valve however I want. And Valve can not do anything to me. Because I don't even have Steam account and neither is planning to, ever. :D

Fair enough, I commend you on your resolve. Giving up Windows originally was a hard enough transition especially using the immature Radeon drivers many years ago. Giving up on Steam would have been one step too far for me. There's only so long i can play supertuxkart and 0.AD.


No, it is not. GOG said it will remove "connected" games from user's library if for one reason or another they vanish from his/her Steam account. Get banned on Steam and you can say "Goodbye!" to all games "connected" from it. :|

My apologies, I must of misunderstood how GOG works. I thought you could download and store you games on your local HDD with no DRM/authentication process effectively making your own offline arcade game box.
Liam Dawe 1 Jan 2018
  • Admin
I really don't get the weird in-fighting over who loves what store. Use what you think is best for you, be it Steam, GOG, itch, whatever :)

On this case, Steam could do a lot more than ban usernames to fight bots - which is the point. However, as said they're still doing a lot for Linux gaming behind the scenes and I very much appreciate the work they're doing.
Guest 1 Jan 2018
I really don't get the weird in-fighting over who loves what store. Use what you think is best for you, be it Steam, GOG, itch, whatever :)

Agree. Also Don't forget Gamejolt, hardly ever see it mentioned. The site is really nice and they have a decent Linux client too.

https://gamejolt.com/client


On this case, Steam could do a lot more than ban usernames to fight bots - which is the point. However, as said they're still doing a lot for Linux gaming behind the scenes and I very much appreciate the work they're doing.

Apparently the person who made the claims on the VAC bans is just a mod for Valve not a fulltime employee. Also yea, there working on AMDGPU/MESA, Linux VR, SteamOS and generally keeping Linux as a viable gaming platform in the eyes of most developers.
Valve are not anywhere near perfect but nobody can claim 4000+ games in under 3 years is not delivering a better GNU/Linux gaming experience.
johndoe 2 Jan 2018
On this case, Steam could do a lot more than ban usernames to fight bots - which is the point. However, as said they're still doing a lot for Linux gaming behind the scenes and I very much appreciate the work they're doing.

I think that an "anti-cheat-protection" should normally check if the client connecting to the server is known (some kind of hash algorithm) and not modified/unknown. It should also check by undefined interval if the hash does not change after some time.
Is it really necessary to check username, hostname, maybe more?
Lonsfor 2 Jan 2018
Honestly, why would a person using a bot actually name it in such an obvious way?

He is mocking Valve and everyone else by saying "Look, Valve is so incompetent that i can make an army of literal bots and they wont do anything about it."
14 2 Jan 2018
  • Supporter Plus
operation ditch valve in favor of gog itchIO and other stores lets do it
in fact lets go even further one month of no steam challenge commence!
I can't agree with this. I am a fan of having a variety of etailers, but I would simply not use Linux as my daily driver if it wasn't for Valve.
Code Artisan 2 Jan 2018
operation ditch valve in favor of gog itchIO and other stores lets do it
in fact lets go even further one month of no steam challenge commence!

Steam is much more than a store and a DRM; the workshop alone makes it superior to the alternatives.
Eike 2 Jan 2018
  • Supporter Plus
Linux gamers can't afford to ditch Valve at this point…
I personally have all the rights to ditch Valve however I want. And Valve can not do anything to me. Because I don't even have Steam account and neither is planning to, ever. :D

Then it's obviously impossible for you to ditch Valve.
Liam Dawe 2 Jan 2018
  • Admin
Article updated with a quote from Valve.
Leopard 2 Jan 2018
Yeah... I don't buy this. Someone got busted for using cheat software and is trying to fight it with a lame excuse.

You were right , article updated !
rkfg 2 Jan 2018
In case you didn't google it, [here is the cheat](https://github.com/nullifiedcat/cathook). It's a unique beast because it's totally FOSS so it must be much easier for VAC to detect than private cheats.
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