Graham here — game designer, been in the insdustry a couple years. Teaching myself how to program, mostly through procedural generation and generative art… This site is like magic for me! Thanks huge!
I agree strongly about the namespaces thing; having started several wikis of my own, I have a strong distrust of namespaces. Consider their purpose: to prevent naming collisions. But how many games are going to be called 'runtime-random-level-generation' ? Not many I assure you. ;)
If there are collisions, wikipedia-style disambiguation pages still encourage accidental linking, and increase user exposure to content, rather than hiding it away.
I haven't ever played with Wikidot, don't know what kind of control it offers for rearranging these things (going to start a sandbox and play around with it). This seems like a community I can really get into, I'll report back here if I find anything interesting. :)