Just a though - I never looked down the list of subjects beyond what I was interested in, so I didn’t notice the “Donate” section until I was sort of wandering around.
Maybe you should put it at the top of the forum list? That way it would be more noticeable. Sure, some might think that’s a bit gauche, but hey, someone’s got to pay for the overhead of the place.
I’ve contributed, so I challenge others who haven’t yet to do so.
Dan