Such a very interesting thread, here are my observations.
1-The alleged stolen amount is way too large that should result in "victims" going after OgNasty back in 2012 , let alone now given bitcoin price is a little over $7000, tracking the transactions and proving that OgNasty has received coins back from Pirateat and kept them would have been fairly easy back then ( unless Pirateat and OgNasty were scam partners and Pirateat made sure those coins can't be linked to OgNasty) which does not seem to be case since Pirate "admitted" that he fully refunded OgNasty.
if Pirateat is lying about the refund, then , OgNasty is innocent.
if Pirateat is honest , where are the victims ?
2- Why would OgNasty in the first place get involved in an obvious Ponzi which was deemed to fail ?? some might think it's not your mistake, but after all you are involved in this , your depositors joined this obvious Ponzi because they trusted you, so IMO you should put a little bit more effort in proving you have paid every single coin you received from Pirateat to your investors instead of just denying the accusations.