Dude there’s a difference between saying “we won’t host violent videos so some trolls can get off” and “we’re going to police every action”.
People like you who will inevitably bring up the “slippery slope” argument seem to ignore a) twitch etc are private companies and you can’t force speech on them, and b) there’s is no difference between threatening or broadcasting violence against people and having an unpopular opinion.
Unpopular opinion: America should be communist.
Opinion that might get you banned: “go out & beat up or murder people who disagree with me”