Isn't it possible that there are no true blood creationists that are capable of coherent thoughts?
No, this is definately not the case. The creationists like Whatever are harmless because they can't deliver the "payload", so to speak - they're not likely to convince anyone simply because they're not very good at crafting compelling arguments.
The really scary creationists are folks like Johnson, Gish, Hovind, and Baugh - the guys that really
can craft compelling arguments and are skilled at concealing their fallacies. Those are the guys that produce people like our friend Whatever, and create the arguments for them to parrot.
The minute that you let yourself think that all creationists are mental midgets is the moment you get your ass kicked all over the room. Intelligence is never a guarantee that someone won't hold erroneous positions; in fact, the only difference between a wrong idiot and a wrong genius is the quality of their rhetoric.