How about rep for Wibbles only? It might encourage people to put more effort into their shit posts, and thus will promote creativity within a board that's (for the most part) not bound to rules. Wibbles isn't so serious, it makes for a fine nuclear test bunker. The rest of the community shouldn't be affected by it at all. And if the hierarchy rep creates turns out to be shit we can just as easily get rid of it.

It'll be fun.