The wiki's structure is a mess right now. It is a knowledgebase, but you need to know where to find the info (luckily there's a search function). Project Movaru's goal is to clean up the structure and make all pages accessible from somewhere, so they should be linked where related.
There's not much to say, just look at the Sitemap. As you can see we do have multiple categories going on, and you probably didn't even know some of them. The main problem right now is the mix of development and user-help related pages. Also sub pages that aren't in a category but rather have a name like “parentpagename_pagename”.
Probably separating development pages like “build” into the developer_center, adding a help section and only keeping generic pages like add-ons, events or release notes in the main scope.