Building a wiki is a lot like building a Minecraft world. First, stake out some some territory. Wiki “territory” can come in the form of both unexplored land, such as pages that don't exist yet, or run-down, fixer-upper pages that could use some renovation. Once you find yourself some white space, mine it out with your keyboard and build something there. If you see a block out of place, perhaps someone made a typo. Don't bother asking; just fix it!