With all the talk about changing to CC-BY-SA, or making modifications to the GFDL etc, it raises the question, what is our dream license? If we are going through all the effort to modify the existing GFDL, and mass-migrate the projects to a less restrictive license, maybe it makes more sense for us to draft our own. Enough people have mentioned concerns with CC-BY-SA to make me think that perhaps it isn't ideal either. Of course, once we switch, we could pressure CC into making changes to the license to suit us, but that seems like a waste of our effort when we could draft a perfect license and then switch directly to that.
--Andrew Whitworth