I have no idea either
I have him already in my "friend list" and the "more actions" (yeah right... more useless it should be) only has those options:
* Unmark as Amazon Friend
* Remove from Interesting People
time to google more on the amazon matter me thinks..
edit: it appears he must accept my friendship request in order to contact him , since he chose not to be contacted by other means in amazon.com
also his amazon location ( San Francisco, CA United States) matches his address in his old games!!!! this really must be him! I hope I can contact him somehow...