> Same with Reddit. Add up all the "moderation" time spent removing negative or controversial posts and I bet much more time is spent on content compared to programming the site.

Well, but there is easy solution to this. Just do it in the exact same way the reddit does it, which is to have individual fiafdom communities that have self appointed moderators in charge of their own communities.

So, if a user doesn't like a certain community, with a certain moderation policy, they can stop reading that one, and instead go to a different community with a better policy.