I think he is a multi
@nachius should post proofs of transactions, if he has nothing to do with the scammers account

I'll agree with that. Or this is looking like a case of farming trust between your own accounts to give the appearance of being legit. I'll shoot him a PM and ask him to come provide some proof of the trade/s. Because if the account belongs to RichG, someone else is going to end up hurt.
Edit: PM sent. If I'm wrong, I'll happily retract my post above.
Zepher, thank you for looking into this. I have my reservations on any DT holder who haphazardly empowers potential scammers, while throwing out a everyone does it defense. Such power should be in their hands. Whatever conclusion you end up at after reviewing his PMs will be respected.