I have long remarked to everyone that Wikipedia is the encyclopaedia that "everyone" edits.
However, with time I have to admit that it is getting better, and the editor snafus and diva issues have apparently come somewhat under control.
I don't know how cutthroat the wiki editing scene is now, nor do I have any idea if the internal kingdoms are still in place, but viewed from the outside, Wikipaedia is apparently actually useful now.
Of course, I have this opinion only on scientific pages. I still stay away from celebrity pages or pop references as much as I can.