Marco Krohn wrote:
one of the big problems of Wikipedia is that when you read an article in Wikipedia you never can be sure if the page was vandalized a short time before you arrived.
Huh? Yes you can. You look at the history.
Admittedly, people don't tend to do that unless they (a) know Wikipedia and how it works, and (b) have reason to believe that the article might be a in vandalised state.
Timwi