From the experts themselves....
About Wikipedia:
Wikipedia, a content-free encyclopedia in many languages, started life in January 2001 and has already risen to the status of the internets premiere "trollpedia".
Currently Wikipedia contains 363950 articles, 10032 of which are genuine, and 343 of them factually accurate.
Leaving Wikipedia on an academic par with "Star Wars: Incredible Cross-sections: The Ultimate Guide to Star Wars Vehicles and Spacecraft" and "My First Book of Animals from A to Z".
My most enjoyable time was an article about J. William Fulbright. Someone put in a commentary that J. William Fulbright would have been opposed to the Iraq War. I thought this was pretty non-neutral since J. William Fulbright was DEAD at the time the Iraq War started and thus was incapable of forming an opinion about it except through a psychic. But apparently a psychic was available and my deletion was reverted and I got no support.
A while later, it actually got removed by someone without generating further controversy, but the fact that such a blatantly ridiculous section garnered such support was very telling to me.