Minerjones has a history of playing fast and lose with what he is willing to do for his own (potential) profit. He is
willing to auction off items on behalf of third parties without being in possession of said items, and does not take responsibility when he cannot deliver the items (no disclaimer is made that he is not the seller, that the auction is subject to any additional terms, or that he is not the one actually shipping the items).
It is not unusual for an escrow provider to have the seller ship directly to the seller -- as an escrow provider, I engaged in this practice, and would give terms to this effect, I would say that in the event of a dispute the respective parties would need to provide evidence to support if they lived up to the terms of the agreement.
It is best to confirm all the terms of the trade before a funding address is provided, and that does not appear to have occurred in this case. MJ said it is safe to
"ship" the physical coin once the escrow address is funded, but MJ later posted that he was told via PM that delivery would be done in person. IMO this should have set off red flags, and he should have either asked for additional verification from the buyer to confirm he is speaking to the correct person, or delayed releasing the funds to see if someone shows up claiming to be the buyer whose account was hacked.