http://blog.k1v1n.com/2009/08/if-tree-falls-in-forest-part-1.html
He thinks that experts have a moral obligation to contribute to Wikipedia, because it's the source people actually go to.
(I added a comment that experts without patience for Wikipedia's little ways can contribute by adding a note and refs to a talk page, they don't have to dive into the joys of being a Wikipedian.)
- d.