> The funds were donated to the FSF for Octave. However, many of us in Octave use Gnome, so I could see a point in saying that we in Octave need to ensure that Gnome works well for us. Also, we collect the funds in a rather ambiguous language, without any promise of how they will be spent, within the boundaries of the FSF's 503(c).

I know your intent is good, but reading things like this make me less likely to donate to free software projects without strong management. You should take the intent of the donor into more consideration than what you think is fair use, even if your language is somewhat ambiguous.