Granted I don't have access to the actual stats, but in my experience almost no one uses the wiki, especially on the WoW site since wowwiki is a long-established community favorite. I know I, for one, haven't been back to it since it was launched, because all of the information is available in a more familiar (and probably more complete) format on other sites. Plus, having it open to be edited by anyone isn't desirable for everything.