Just to warn you, you can get into legal trouble for doing that. I don't have the time to get into all of it now, but it's definately illegal. You're not totally anonymous on ebay. Once you win an transaction, the seller is able to get access to your home address and phone number.
Also not a lot of these sellers are doing it to be mean-spirited, etc. Some of them are people that really don't know any better. It's not really fair to be totally up their butts about it
there are some professionals on there, but a lot of them are just casual sellers who find things at garage sale.