Originally Posted by mtrawls

I disagree. Completely. The reason that such projects as Wikipedia have been succesful is the lack of required registration. The aim is to lower the threshold requried to give information, not raise it. Someone can delete the *text* on a page ... but another person can restore it from the archives. And if a certain IP address presents a continuing problem, it can be banned from editing for a while. See here (though their servers seem to still be suffering from strain). The wiki concept succeeds because it is open ... close it, or at least make it less open and it will not flourish as easily.