I did send a reply that I wasn't comfortable with sending money to a PO Box, that I would prefer a physical address. They replied back saying they used a PO Box because they lived right on a street and had trouble with kids and the mail, but if I really wanted it, they would send me their physical address. Following is a list of all the user IDs they use. The others verified by what email address they used for auctioning. Underneath each username is a list of feedback that they've left on each other.
Pics means they've used the same pictures as one or several of the other user IDs.
This is the auction that started it all. He admitted to me in an email that they bid on their own auctions. I had won two auctions, by different user IDs, and they both wanted me to send the money to the same P.O. Box address. This one had bid against me on dac22nd's auction. Always bids on these user ID auctions.