All things combined, we see a > 99.9% likelihood, that @newfish1 is somehow involved in betting fraud.
And we are still looking for an arbitrator. It can be anyone with some online reputation in the sector. We reached out to Sportsbookreview. AskGamblers unfortunately refused.
All of that proof does paint a bad picture for the punter, but >99.9% likelihood of him being a scammer is inaccurate since this is just your opinion. There is a decent possibility that he is a legit punter with a megaton of bad luck.
An arbitrator is the only way to fully resolve this mess and I suggest contacting Pinnacle themselves in this context. Y'all are literally using their odds after all.