I'm still confused as in the mailing address as well people have lockers and have to specify the recipient's name on the gift so that the right person would receive it. If no name and just address is mentioned, how will it work? It will be an anonymous package then.
The sender has to have an address so he knows where to send the package. What Theymos's idear actually does is break the link between the bitcointalk account of the receiver and the physical address of the receiver that's being sent to the sender.
In my case, i'll receive an address from the winner, i know this address belongs to one of the thousands of accounts that are >= full member without negative trust from DT1, but i have no idear what the bitcointalk username of the winner is, so i cannot link him/her to any posts he/she made on bitcointalk.