Well, the interesting thing is, I just was looking for the FDL on the
FSF's website. If there is any question about what we should do on a
wiki to meet the FDL's requirements and want "I agree to be credited
as 'a Wikipedia
contributor' (or collectively as 'various Wikipedia contributors')",
perhaps we should start by emulating what I see here:
http://gplv3.fsf.org/wiki/index.php/Main_Page