IMHO, Wikipedia content should be read with a pinch of salt. I've come across articles in it that are pure biased ones (I can tell because I know to the contrary), either because of ignorance or because of prejudice. That said, yes, I did correct an article. I'd say there are two kinds of people who contribute - those who really know their stuff and have no agenda, and those who have an axe to grind OR just write something, right or wrong, for the heck of it. So how do you know whether an article is 'correct' or not?