That's funny you mention a class action lawsuit against ebay. I have a different reason though.
I actually registered a domain name for this purpose. If you haven't realized it yet, eBay is shaving your auction time you pay for. I don't want to steal the thunder from this thread with the details unless the OP request otherwise, let it be know that eBay are crooks for many different reasons.
One thing to understand about the multi accounting with ebay is practiced by the majority of honest business who like to brand different goods, generally tangible. I have worked a booth at a couple ebay live conventions in my past and have met many power, platinum and titanium sellers. Most had more then one account selling different goods.
For eBy it is figuring out how to crack down with out hurting your bread and butter clients.
Something should be done, but what can eBay do?
As for being ripped off, you can seek legal assistance. eBay will give you the users contact info, hope it is real. You can contact the local police of the seller and start a report and go from there.
As well if you have the time to spend you can request the IP address records of the seller, and or subpoena them which will also help you figure out the location. Someone correct me if I am wrong, but wouldn't this be a form of wire fraud?