Even so, reddit is a huge echo chamber. The moderation is completely opaque so if a subreddit moderator doesn't like something you've said they can remove it at will, and they often do. And the upvote system encourages groupthink. Votes being hidden on HN I think is excellent.
> The moderation is completely opaque so if a subreddit moderator doesn't like something you've said they can remove it at will, and they often do.
That's true of any real community in the physical world, too.
I'd go as far as saying that it's impossible to have fully inclusive and 100% objectively fair community that's also interesting, or even a community. It's not how humans operate, it's not what they want from a community, and even trying to enforce this "perfection" would require infinite resources feeding an omnipresent bureaucracy to moderate perfect order and compliance into people.