From the picture I saw of rarar (reddit), he appears to be about 10 years old. It's really no wonder that he was trying to profit by flipping a Clack when he saw he had the opportunity to do it. If you were 10, and someone offered you $250 for something you just bought for $35, you might get excited, too. But people have tried to educate him why this is wrong, and he's just being a douche if he continues with his auction.
That said, he really needs to just go back to reddit, and leave GH. He is not part of our community, nor does he wish to be a part. Maybe when he matures, he can rejoin and contribute something besides StarCraft plushies and wanton profiteering.
Besides, even if he doesn't sell his Mr. Friday here, I'm sure he'll just throw it up on eBay or reddit, and make all the money which is his desire to make.