He admits it is his account.
Even if he could somehow argue that he "didn't" take those loans, he still deserves a negative rep for being an account seller. If he is willing to do it on btcpop, you can be sure he'd try it here.
That's actually very true. I wonder how easy he admitted it. He must have few more accounts in here. Who knows.
He is a bit wrong about his assumption though. Yes, the admins will not give a shit about it, the mods will not (may be) ban his account because scams are not moderated however I am sure if your evidences are satisfactory to the DT members then they will tag him. Here he is wrong, tag from DT members will not be good for him. Any lander will see the tag and they will deny his requests.
Good job OP
Update1
PS: Looking at his feedback page, it seems he actually repaid every loan he has taken from here. I am just confuse a bit however I will not trust him with my money.