Not a GNOME user so I have no idea what the GNOME foundation gets up too, what sort of controversial things have they funded in the past?
I'd happily donate to a legal fund to fight this lawsuit though.
GNOME Foundation could probably just use GitLab.com, it wouldn't take a full time staff if their focus was infrastructure. It seems like the GNOME Foundation is predisposed with gaining institutional power over the symbols of GNOME, to egoistically control the community.