Reddit is the best example of why heavy moderation is worse than lack of moderation.
No moderation = porn, gore and nazi discussion. Period.
"Light" moderation often = bad-faith trolls taking advantage of your moderation.
HN does a good job of moderating for civility and effort of the post, rather than ideology.
Here's the thing: Talking about controversial topics, or debating with people who think differently than you, takes a lot of effort online, because there are so many trolls and others baiting you into defending a position without putting any effort to explain their own.
So yeah, heavy moderation is an unfortunate necessity in some forums.
I don't really understand why people waste so much time getting something removed instead of just reading something else, but there are whole communities that live for banning others by now.
In a larger legal scope platforms are under heavy scrutiny by moral busybodies right now.
Read the above and reconsider if your argument makes sense. It stands to reason that if you have any position of "power," even if it's just "random internet moderator," you should at least try to be fair, consistent, and reasonable.
Moreover, that's the point: it's as i.possible to have a healthy anonymous forum available to the world as it is to have a large society with no laws or government, that isn't dystopian.