I wonder if we shouldn't contact the developers of other open source wiki software, and convene a by-email "mini summit meeting" about wiki syntax, and try to formalize a standard that they and we can all follow.
We've deviated, with good cause and good results, from the traditional CamelCase method, but there's a lot of syntax that wikis share, but lots of little idiosyncracies that should probably be ironed out.
Or, we could just create our own standard, publish it, and recommend that everyone else follow it. Maybe a bad idea, though.
--Jimbo