It's not true any more. Due to WikiSpam and other problems making open sites on the web.
The eventual goal, after some cleaning up of the junk that's here, is to release a usable core of the ThoughtStorms wiki pages as a git repository. Anyone will then be able to fork their own copy of ThoughtStorms and work on it in their own tools. (It's just MarkDown + the double-square-bracket convention for links).
At some point ... when I get my act together, I will start accepting additions / arguments etc. as patches.