I added some content to the 'text' section of the guidelines page that you asked about. It is still rather sparse. I suppose that part of the reason for this is that much of the site edits have been handled by Dru and myself. She mostly adding the content and usually images, and basically being the editor of the resulting handbook. I have tried to make improvements in other areas and have done some edits and image uploads (which I also tried to document some best methods).
If you have further thoughts on any part of this process, including wiki templates, wiki documentation, and anything else, I am willing to listen. I feel that what we should strive for, is a level nearing wikipedia. There are still many things that can be improved, especially things that would make an editor's job easier, shorter, or more intuitive. You found the style guidelines page, which means either it made sense to seek it, or it is something normally found on a wiki site. I am not sure of all such pages, that is part of the reason why a lot of the editor documentation is missing.
I might suggest to explore the entire wiki site and see what is here already. The special pages are very helpful for discovering problems, such as double redirects and other faulty things. I have tried to have all handbook pages categorized, and all useful pages with one of the two headers.
--Tigersharke 02:48, 6 July 2012 (PDT)