It's important to keep in mind that volunteers - anyone you're not
compensating for the work - do what they want, and won't do that they
don't want to. A lot of volunteer organizations implode when people
at the core forget that.
An excellent example of someone reaching their tolerance level on
stuff they don't want to do for free (althought it's commercial-ish
work on an unfunded project, rather than a purely volunteer project
for charity):
http://www.27bslash6.com/p2p.html
--
-george william herbert
george.herbert(a)gmail.com