It’s a pretty cool place to check out! It’s new, but the idea is to get all the known scammers in one place.  So if you’ve been scammed by someone, and we’re not talking about getting a GUC instead of an EUC item.  Like, not getting anything, they disappeared off the face of the planet, did a chargeback after you sent the item, etc.  Head over to that site.  They’ve got an email address to send the info to.