I like the idea of a special area you can write in, but perhaps not level based. Perhaps it can be a prize (an in character item like a ticket (remember Eon ticket for Pokemon?)) for winning a Vignette or something?
Perhaps we can also get "one use" items that double EXP or GP, for use in a single thread?
I'm not great at this but feel I should contribute! Customs levels and usernames are cool too.