Doubt this goes for ebay. These guys are nuts crazy in their hate for BTC. They are control freaks and everything happening between your ebay account and your paypal is closely monitored and they have constant communication. Accepting BTC would mean it will be harder for ebay to control vendors and according to them probably more scam attempts will emerge. Nowadays they can close down your vendor account for even having the word BTC in some of your listings. You have to be extra stealthy about it if you want to conduct BTC related business there.