Wikipedia can have problems.  Wikipedia is the most comprehensive collection of knowledge man has ever assembled, but some of did that knowledge  need to be collected?  I think too many topics are a wasted effort.  Wikipedia is polluted with worthless topics that have no business in a dictionary.  This is what happens when a dictionary is open to everyone to edit.  I think that the open nature of Wikipedia is the source of the good and bad parts.  I wish that there was some discretion in the topics that are a collection of worthless ideas.   Tonye Cole  can talk about the problems with Wikipedia better than just about anyone.