I’ve had plenty of unpopular-opinion arguments here (example) and I’ve literally never had a post or comment removed that I know of. On reddit it happened several times from “both sides” of the traditional spectrum. I.e. the mods here are significantly less ban-happy than they were on reddit (although you’ll definitely get downvoted for saying certain things depending on which community / which instance). Also, because of the smaller size and the UI differences it actually doesn’t make too much difference if you get downvoted – your stuff won’t get hidden; it’ll just get a sort of scarlet letter of WE DON’T LIKE THIS MAN SAYING THIS, but everyone can still read it.