So? He wanted to make a point, or he wanted attention, what did anyone lose by him pretending to be a young woman and get attention?

Instagram biker chicks might be annoyed because he's a competitor, but anyone else?

I assume all the instagram biker chicks are no turning off their filters and removing makeup, right?

I'm not going to assume anything about this person's gender, but I think it's worth mentioning that the Japanese government uses violence to erase transgender existence [1], so it may not be a safe place to be non-cisgender.

[1] https://apnews.com/article/9ef16f52e9b94b9a838b17a63c6c1e8d

Unfortunately, there are quite a few things Japan has tried to erase through history, with varying degrees of success. "Silence" is a pretty good novel that touches on one of those things (beware of descriptions of torture / extreme violence).

He self identifies as a 50 year old man who identifies as a young beautiful woman, not just as a 50 year old man.