That is true but doesn't fully explain the OP's "what's relevant or even correct" bit. The truth is that OG wikis needed a special kind of moderators---affectio

That is true but doesn't fully explain the OP's "what's relevant or even correct" bit. The truth is that OG wikis needed a special kind of moderators---affectionally called WikiGardener or even WikiMaster---who clean up things and deal with conflicts without removing values provided by prior authors but possibly removing the contents themselves. If this sounds absurd that's because it does; it is waaay harder to maintain than typical forums and even encyclopedic wikis popularized by Wikipedia. And without those kind of hard and thankless moderation non-encyclopedic wikis generally end up with being a dump of uncurated informations.