It's about the local Linux account name (which frankly Steam has no business touching or inspecting the contents of past pasting it into a path IMO), not the in

It's about the local Linux account name (which frankly Steam has no business touching or inspecting the contents of past pasting it into a path IMO), not the in chosen steam name (which can be anything) nor the unique steam name in profile link (which I think comes from the login, I'm not sure now). In any case - both are all over the place and in online games there are often crazy names that look like the came from /dev/random. It'll also be easily circumvented now that it has been discovered and it was dumb in the first place. Valve really dropped a ball, it's not like they don't know how crazy, meme fulled or troll-y usernames get on their platform. Outright VAC ban (that's a big deal) for something like that is absolutely idiotic (extra inspection that doesn't affect anything for legitimate users - sure).