Those "turn X off" buttons are fine; they're great actually, that's exactly what I'm advocating for (at least in the in game portion of things). There should be more of that, and they should be standard options.
e.g. it took Quake Champions years before they finally decided to add a mute chat button ... and when I suggested it almost a year before they implemented it, the discord chat lit into me "get tougher skin", "lolololol", etc kind of comments.
Every time it's brought up people take it personally like it's their right to be a dick in the game you both paid for... just because developers didn't implement an option to allow people to shut them up. Even here there are some pretty obnoxious takes (I'm not talking about yours) insisting I just need to get over it because "it's just a game."
I'm not saying anybody should be prevented from having a competitive rage baiting game where they trash talk left and right ... but some people do not enjoy trash talk regardless of whether or not they can "handle it" and I am one of those people.
Edit: For forums, I think non-constructive criticism/disrespectful comments/personal attacks should be "punished" by disabling forum/comment access though. There's no benefit to "mind games" or "trash talk" there... if you don't have anything constructive to say... I don't think you should be on, e.g., a suggestion forum. It's not helping the poster or the developers, it's just outright spam.