Han-Teng Liao highlights a very serious issue regarding the large gulf between Wikipedia and academe. University students appear to be enthusiastic users of Wikipedia while the professors either shy away or are quite hostile and warn their students against Wikipedia.
One factor is academe's culture of original research and personal responsibility by name for publications, versus Wikipedia's culture of anonymity and its rejection of the notion that an editor can be respected as an expert.
A second factor is the need for editors to have free access to published reliable secondary sources. I think Google-scholar and Amazon have solved much of the editors' access problem regarding books.
As for journals--which is where this debate started--I do not think that open access will help Wiki editors much because I am struck by how rarely Wiki articles (on historical topics) cite any journal articles. I've offered to help editors get JSTOR articles but no one ever asks. There is something in the Wiki culture that's amiss here. Possibly it's that few Wiki editors ever took the graduate history courses that explain how to use scholarly journals.
Maybe we need a program to help our editors overcome this gap and give them access to a massive base of highly relevant RS.
Richard Jensen