I would disagree on some of those. The quality of discussion is higher provided you don't mind the lack of humour. And the diversity of thoughts and opinions is

I would disagree on some of those. The quality of discussion is higher provided you don't mind the lack of humour. And the diversity of thoughts and opinions isn't that high because of the strict moderation. If you want true diversity of opinion, but far lower quality of discussion, 4chan is the place.