I'm no lawyer either, but Preston's case seems to have alot of crossed wires on the surface. Too many contradictions.
-Ethan did publicly call for a deep dive on Preston, but what was eventually unearthed was readily available to the public anyway.
-Preston expressly made these videos to be seen commercially. He is not ashamed of them.
-Ethan's intent was to humiliate Preston, but Preston obviously can't be humiliated by something he's proud of. Ethan failed.
-The heart of the matter is whether it effectively damaged Preston's professional reputation and scared customers away. The answer to that is obvious.
-The very people who would be scandalized at Preston's caca-cuckery would be the ones "kink-shaming" the enlightened self-aware therapy-addled Preston. In other words, they aren't the fans Preston wants anyway. Therefore, Ethan helped him locate the very customers who will accept him for this. "Accept" not forgive because I don't believe Preston has apologized for this. That would imply it was wrong of him to have made the videos in the first place
He misses the money, but the reality is Preston won't accept the customers who aren't going to be okay with his lifestyle. Oh well! Time for another hobby, I guess.