So here are my issues with the paranoia suspicions:
1. If Greenplastic is guilty, why would he hack the sellers account when greenplastic is the one sending the BTC? The seller wasn't going to send the item without payment so unless his plan was to guilt Godwine into sending the coins (a stupid plan) it makes no sense. Instead if his intent was to scam this auction he would have rather NOT won the auction, then hack Godwine and divert the buyer's BTC payment to himself.
2. If Godwine is guilty, why would he still be be posting on these forums? He would have had the BTC sent to him either way, and his reputation is totally ruined anyways for trading purposes. What is the point in trying to defend his name if it was just about the scam?
I think the most likely event is that some third party simply fished out Godwine's password as previously described, and is causing both parties to implode into paranoia right now as a consequence.