Realistically even with a lawyer and all that... It would take months for them to drum up a legal cease and desist, even if they took action the moment that they were informed. It would take a longggg time. And to that end, I could easily just remove all perks for donating and continue on. Simple as that.
I understand your concern. But we have been around for a good while now. And will continue to be for the far-seeable future =]