The Pro and Con of Wikipedias

Read the following statement of a professor who publishes about herpetology, and comment by offering your own thoughts about wikipedias in general. How can class wikipedias still be beneficial? What do you need to do as a teacher?

I have had several questions of late regarding pigmentation and chromatophores. There is a lot of information out on the misinformation super highway about chromatophores, but it is highly confusing. (...) The point is that the misinformation super highway (MiSH - not to confuse with MSH which is melanophore (melanocyte) stimulating hormone) is full of people that do not do the proper research and do not fully understand the subject they are writing about. Some in the misinformation super highway's drunk lane (abbreviated 'wikipedia') do much more than confuse the issues, they actually write things that are incorrect and when it is corrected, change it back to the incorrect information (see the wikipedia article on leucism that a colleague of mine at another college tried to correct and wound up getting his stuff changed back to the incorrect information and told that he did not offer credible citations when he used research papers, peer reviewed literature and expert's text books as references).

http://vetherppath.hubpages.com/hub/Understanding-Reptile-Color-and-Correct-Color-Terminology