I just started to play Wakfu recently and I would like to flesh out the wiki. Can I take screenshots of everything in-game and create wiki pages for them or is the expectation of a Giant Bomb wiki more of a general overview with just significant characters/events?
Don't make a wiki page for every screen shot you take.
You should read the wiki FAQ thread.
I come from a WoW background, so I was thinking about turning the Wakfu wiki into something similar to the Wowhead database. But, based on the FAQ, it sounds like the wiki should be more conceptual than specific. Am I reading the expectation correctly?