Edit warring and why uncommunicative people win.
So I was going back and looking at some old articles that I thought were interesting and I notice many being semi-protected. In the history, I see why. Some people (Helpful-Group) go and add sourced, accurate information to the article and then Vandalistic-Reverter-Group goes and reverts. Helpful-Group constantly argues in the talk page and Vandalistic-Reverter-Group blindly reverts and will not even communicate. Helpful-Group continues arguing in talk and trying to improve the article, compromising in various different ways to try to appease Vandalistic-Reverter-Group while Vandalistic-Reverter-Group just reverts without talking. This goes on a while. So then an administrator comes along and they side with Vandalistic-Reverter-Group and they ban for life some of the Helpful-Group.
Yup, Wikipedia is not accurate.