These users have write permission to pages on this wiki, by default.
For the moment, this page is world-writable so XG members can change the way their names are written before they get an account, and so new XG members can add themselves. We'll start to enforce real access control to this page if it becomes necessary.
If your name is written as a WikiName (like JeffPan), then it becomes a link automatically. If you would rather have your name appear throughout the wiki as a non-WikiName (like Jeff Pan), you and others will have to type it using the slightly more verbose form: ["Jeff Pan"].
The names here are links to each user's Wiki home page (which may or may not exist yet).