There is no way to prove payb.tc, the operator of the BitcoinMax PPT, knew or did not know the nature of pirate's operation.

That doesn't matter; the reasons payb.tc is a scammer are that he

1) refused to recognize the reality of the BS&T default, preferring to remain mired in the past and demand full payment

2) refused to comply in good faith with pirate's request for PPT account information

3) refused to comply with his own BitcoinMax account holders' requests that their account info be passed through to pirate

4) suddenly proclaimed an 'all-or-nothing' stance towards pirate, despite having been willing to trust him previously, only after the default was announced


Payb.tc, next time both your PPT account holders and pirate ask you to do something (such as pass their PPT account info through to pirate) DO IT.