A few amateur thoughts.
The market has been saturated with repetitive content. Women are not known for being great innovators, sadly, and men understand male minds better, especially the dominance and submission aspects, which are the go-to in hypnotism.
Hypnotism is perhaps the cleanest way one can "prostitute" themselves, and many simply quit for feeling too dirty or getting weird patrons.
I still don't know why there is so little innovation here.
>still no files where you fuck the sissy instead