Some interesting reading of satoshi's earliest posts.

In one (a discussion with The Madhatter) he writes:
"I see, that would happen with multiple nodes using the same NAT or VPN or some ISP that funnels everyone through a few proxy servers.  I just committed a fix to SVN for this.  If it gets "433" name already in use (it was error 433, right?), it'll retry with a non-address random username".

Is the 4.33 btc bounty some how conected with this error 433 or are there clues in his discussions with The Madhatter?