Wikipedia...definitely not a valid source

Ever since i have been writing research papers, or around the eighth grade, i've known that my teachers were not big fans of Wikipedia. This is understandably so due to how the articles are edited and composed. Anyone, at any time has the right and ability to put his or her two cents in on a wiki article. This means that if a certain politician feels that he has been badmouthed on wikipedia, he can simply get online and put a positive spin on things. Strides have been made to counteract the reliablility of wikipedia by making the computer of the writer of a post traceable. This, however does nothing at the time. All the politician would have to do would be to run across the street to Starbucks and go to town. The author tracing system doesn't hold much power now, but it's a step in the right direction.