Dave, I was once strong-armed on eBay. I made it clear to the seller that he would become my pet cause for the rest of his miserable eBay existence. (I also hinted that I liked to post on many of the bicycle-related message boards and would feel morally compelled to share my opinions of him.) He backed down, claiming I had misunderstood. Yes, you should do something...just don't cut off your nose to spite your face...whatever that means. How about letting us and the i-Bob list know his eBay handle?
Ed Kasper
Detroit MI