Pertaining to the questions about "morality" and "personal justification" -
I would agree that in another country, on another auction site, and with another item, this would not have necessarily been so bad, or even wrong at all...
But Here, where we as a COMMUNITY convene to buy, sell, and trade My Little Ponies, I feel it was completely out of line. Yes, we may have all done it or something like it at one point as a newbie, and got our butt handed to us as a result, and we knew Never to do it again.
But We all as Nirvana pony collectors KNOW what is expected of us, and we work on the "do unto others as you would have them do to you" rule in this community (particularly with Nirvana ponies). Therefore, I hope in my heart of hearts, this mystery buyer who may have asked for a BIN (if in fact, this did occur), is NOT a member here, where he or she should know better (and would be expected to know better before even knowing what a Piggy Pony was).