Interesting.
It is not surprising for me as many of creative and rich people are big perverts.
Although it is strange that he was so careless and got exposed.
If he decided to visit gurochan he would have found the only girl in the world who is fantasizing to be cut in half and probably who is not going to expose him LOL and probably still single :)

Even if he is rich enough to hire hookers for everything it is still a fantasy which you will not realize in the real life easily, and it mat cringe even hardcore prostitutes so you have to go online either way and hag out in the community of people like gurochan or pixiv or f-list. which would be the best way to find a wife of you somehow can convince them to reveal their real identity and your dream girls is not a guy.

What I find really strange that he exposed himself with his real name but it seem to be some kind of trend for those rich idiots who don't know even basic ways to protect their identity online.
Although all that evidence you mentioned is just laughable. Any kid it very basic computer knowledge could do that in less than a day. no photoshoping is even required as that would be the hardest way.
another strange thing is that all of that was received so badly anyway because nothing he did is in any way or form illegal if those girls were not underage.
there is no reason to cancel him at all.