EBAY, like any other corporate entity only messes with the little unconnected guy with no clout whose presence will never be missed from a mass commercial standpoint.
Plenty of people refuse to tolerate PayPal because of these types of actions.
I solved my issues by affiliating with a US Government Agency.
I list the main switchboard number as my number (as there's no room for extensions) and when EBAY people or their vendored call center harrasers call the operator and try to harass him with their various bullshit threatening tactics, he reminds them that they are calling a Federal agency and that their call is recorded. Whoever does that gets an IM from the operator, besides having the call logged onto the main system.
If they don't disconnect and continue to harass, he brings our branch of the U.S. Federal Security on the line, (a different version of say the Capitol Bldg police), they tell the caller they are tracing the call to their exact call-center workstation and that the caller himself, not his call center company or their legal affairs division will be facing Federal harassment charges if they continue.
Miraculously these call center reps report back to EBAY to leave me alone, and they do. Other guys here do the same, and the ones that get their accounts canceled by EBAY just login with a new variation on their original handle, and through the various Federal Government legal channels, take six or eight weeks for the U.S. Government to force EBAY to return all their positive feedback on their new account.
And then there's the zillions of anti-EBAY sites all over the Net, some of which have a certain amount of legal, political and commercial clout of their own.
If I were you guys, if you are not academically or research-affiliated anywhere and can use those avenues to utilize the Federal Government legal system as we do, then do the next best thing and find out which of the anti-EBAY sites actually have the needed clout and affiliate yourselves with them.
That'll show' em.