Sorry about your troubles, I understand your aggravation. My business was the target of a shakedown lawsuit along with hundreds of others in Calif. by a few lawsuit mills exploiting a similar loophole in California law. The lawsuit mills were eventually closed down and the loophole was eliminated but not before I shelled out $20K in defense costs.
A defense fund from forum members is a good idea, a long term court challenge and solution to the problem is even better. More on Righthaven:
http://www.lasvegassun.com/news/2010/sep/05/defendant-accuses-righthaven-misusing-legal-system/
Here is some info on how it was resolved in Calif. if you find it useful:
http://www.calchamber.com/headlines/publicaffairspolitics/pages/shakedownlawsuitvictimsspeakoutinsupportofproposit ion64.aspx