The rules applied to the Steam Community are unclear. I have been warned twice in three years for necroposting, a rule that does not show up at all on the Steam Community forums. When you are warned there you only get a link to the Steam rules, which does not include Gaijin’s rules, and thus not necroposting.
I am one warning away from a ban because I didn’t know this was a rule there, the warnings never go away, and you cannot appeal them to Steam support. There is no easy way to appeal them, either. Again, one of them is three years old at this point, it’s absurd.
It’s also kind of absurd given that the posts there often are left open for years, which seems to lead to people getting warned for necroposting without any actual knowledge of this being a rule.
I believe, because of the nature of how the Steam discussions work, there should not be a warn for necroposting and instead the mods should just lock it. Warning (and eventual banning) seems too far harsh for just partaking in discussion, even if old. Especially because this rule IS NOT CLEAR.