So eBay now acknowledges that they have a severe problem with NPBs. So much so, that they've started a service allowing folks to file NPB alert IN BULK. No joke.
http://www.ebay.com/sell/bulknpb.html
Hey eBay, here's an idea. How's about policing the sign-ups better? How about enforcing the flaky bidders better? How's about tightening up the reins rather than - once again - placing the responsibility for turning these idiots in upon the seller?