Wikis

I always enter learning with curiousity, enthusiasm and an open mind. Wikis sounds great and would definatley have many handy applications and is a great tool. But there's this niggling part of me that doesn't understand the idea "A wiki invites all users to edit any page or to create new pages within the wiki Web site, using only a plain-vanilla Web browser without any extra add-ons." How would anyone know what truth which lay in a piece of information? It reminds me of the Chinese whispers, where one peice of information is told to a person, and as the info is passed on it gets misconstrued and, in the end, is quite different from the original "truth". Something about that and Wikis and the whole Internet thing leaves me feeling somewhat tentative. Not completely, just somewhat...