Oh, I just figured out why he has only positive comments. New comments need approval before they're added. And as Roto made me aware of, he disabled ratings after 5 votes, just enough to get 5 stars.
I hope this person dies a very violent death at a very young age.
-edit-
Now that I'm done being pissed off at him stopping me from commenting, I would like to point out that I particularly like Grinen's 4th question.