I noticed there's a navbox at the end of this page which is hidden by default. Is it a user setting or a wiki setting? I think that would be useful to have it displayed/expanded by default. I like to see what's behind the scenes and it's often those kind of things that make me want to participate.
Since that navbox is like a "Five Ws" one-pager about the Wiki, I think making it visible would promote participation to the Wiki.