From Lisa Daniels and Alex Johnson of MSNBC, on Wikipedia-

Neil Waters had never seen anything quite like it. “I was looking at a stack of final examinations,” said Waters, a professor of Japanese studies at Middlebury College in Vermont, “and I found several instances of misinformation that [were] identical from one student to another.”

Generally, a situation like this suggest a group of lazy, cheating students. Now, it simply signifies speed bumps in a "revolution" of sorts.

Personally, I believe Wikipedia has value. However, Wikipedia supporters, especially those in the "hype peer-productoin crowd," should tout its value with more qualificaton.