Can't wait to see that hot takes from the free speech absolutists who have never experienced that first-hand on a platform they frequent regularly. We already know what that looks like, it's 4chan/8kun/etc and surprise, it's absolute shit.
Reddit became wildly successful as a clone of 4chan's textboards using digg's "comment section of the internet" idea of bare links as threadstarters, and barely moderated anything until a few years ago. For that matter, twitter itself barely moderated either until the lead-up to the 2020 election.
I won't energetically argue with you that 4chan and Reddit aren't shit, but plenty of people would. They've both been massively influential on world culture. I would argue that twitter moderation has been almost strictly political and along culture war lines. Reddit, instead, mainly targeted cruelty and child exploitation for moderation.