While true, the few people who do have something to contribute to a conversation simply can't do so on a highly-sanitized, heavily-moderated forum. The things they'd say would be too upsetting to a status quo, and the status quo will win. There is a real difference between something truly insightful and flat earth theory, but outsourcing that decision to a reddit mouth-breather whose only qualification for moderating is that he showed up to r/whatever back in 2013 before anyone else is not the way to detect those differences.
Wait until you're banned without appeal from some place because you called it the master branch out of 15 years of habit then get back to me if this moderation thing is all its cracked up to be. 4chan, as bad as it is, is the least insane of all internet forums, and humanity would be ashamed of that if it wasn't the root cause.