In case anyone else misunderstood the title the guy wasn't producing incest videos himself but he had all kinds of underage and incest content on his electronics that he was exchanging with other pedos.
He was definitely doing some disgusting stuff but he wasn't physically abusing anyone as far as these charges are concerned, which is what I assumed based on the headline. It sounds like he hasn't had the chance to act on his perversions but he was actively looking for someone to abuse.
Title suggested he was trading. But either way it doesn’t matter. It is in part condoning physical abuse by providing a willful and consenting audience to it. Even if you’re not doing the act you’re still benefiting from an act doesn’t excuse you from partaking the dog pile.
A brain with a shred of ethics where something may have even been mis clicked online spots and terminates a non consensual interaction as to know that feeling that they provided some eyes to see it and regret having seen it. Eg: regretful search in google.
Where as a monster comes up with excuses to keep looking at it….such as an excuse like what you just provided.
Even If you consume something(trading even if it’s not creating the footage yourself) that is contributing to the abuse required to make the thing. He was aware of the abuse. And he went on and benefitted from it anyways. So yes, he is accessory to the abuse that was imparted in making of the footage.