LOL!! Only problem with this, Wiki has so many zealots authors employing bots to do auto reverts and anti spam programs, that it is damn near impossible to get away with.
I tried, and kept a log of how well it went. Out of about 100 sites, only 3 stuck. Those 3 stuck to articles that weren't really edited on a regular basis (read longer than a month since last edit). Most sites got yanked within 1 minute, and the ones that hung for a "long" time lasted 20 minutes.
Try it out if you don't believe me.