I think we need to encourage material to be produced for LGPL projects.
First, LGPL is ALSO AUTOMATICALLY GPL, because LGPL says "oh, and you can also distribute anything in this license in the GPL as well, if you prefer."
Second, LGPL material will be easier to use for Squawk projects.
Third, LGPL will be easier to use for other people's own propriatary work as well.
Fourth, there are less misconceptions about the LGPL than there are about the GPL. LOTS of people on quakesource.org think that GPL means that other people can't make money off of it. (I have been used as an "expert witness" in some of these debates.) Few have this misconception about the LGPL. Artists who are getting liscensing advice from their already confused programmer friends, are going to need the clearest possible liscence, and the one that is understood most clearly is the LGPL.
I think that the FGA should be for both "GPL and LGPL" combatble projects. However, I think we should influence the direction of the project very early on, to have an extreme preference towards the LGPL. We might do this by starting a few LGPL projects on there. For example:
The LGPL sound library: a collection of sound effects under the LGPL licencse, intended to be used with LGPL & GPL game engines.
The LGPL Zoo: a collection of animal, plant and monster models, under the LGPL licencse, intended to be used with LGPL & GPL game engines.
If these sort of projects were already established and developing when folks got to the FGA, it would positively frame the way they thought of developing and donating work to the FGA, in my opinion.