When you introduce such a high level of moderation and ranking what you get are a load of reddit style "funny guys" that are desperately trying to be noticed.

I prefer random comments without ranking, because it gives you a more truthful view of public sentiment. The force that aggressively filters comments is the same force that takes away the dislike button. It is all about controlling public opinion. Everything is good all of the time, and everyone is in a controlled demographic where they are insulated from new ideas that might make them difficult to advertise to.