I think there may be some still trading with this guy..........at their peril????
I know he has sent the bucket of some from here and said "anything you like there, I can get it for you".
It looks like he gets someone's trade list (uses it like his own) trade with someone else. Gets 1.5-2 times from one guy and 1.5-2 times from the other guy, so makes out with 1-2 times the trade value without actually having the cards he trades through his hands. Acts kinda like a middle man, but without the other parties knowing.
As if he thinks in this world we cannot trade between ourselves on the net and get a better deal without a middle man (him).
And he keeps pestering.....as I'm sure you know Graham.