My quick guess would be that one would have to pay additional filing fees for registrations that were allowed to lapse. Of course, if wrenchmonkey was serious about his "fuck the law" stance, BFL should just fail to register and not pay any taxes either.
BFL creating their own charity, donating to themselves, then paying their contractors with it. Quite the song and dance routine.
Who can really say they were surprised by this? Or surprised that some people would try to defend this behavior? Yet another broken promise from BFL, and they'll get away with this one too since nobody bothers to hold them to their promises.