The FSF has the same status; anything that's lawful for the FSF is
lawful for the GNOME Foundation too.
Mainly it's a matter of following the foundation's charter; but the charter doesn't have to be
interpreted in the strictest possible way.
There are limits on expendatures for lobbying, but lobbying is a
rather narrow activity and I think we have never done it. Grassroots
activism and communication to the public are usually not lobbying.
Also, we are not allowed to work for or against specific candidates
for office.
> I would be pretty open to hearing any ideas on what we can do above and
> beyond being useful free software which does fall within GNOME’s remit,
> though.
The GNOME Foundation's activities will naturally focus on promoting
GNOME; in the course of those activities, it can promote the free
software ideas too, in many ways.