Does registration to receive payment involve a tax id number?
If so yes it’s reported and taxed.
Pretty sure a huge company like pornhub is t sending out anonymous payments for anonymous porn, would be completely against sex trafficking laws and prob violate any agreement they have with any processor.
Regardless, let’s say you earn it anonymously which is possible of course.
You now have to spend it. You can’t have the spending attached to you. Don’t go paying your phone/rent bills etc. or sending it to an exchange.
You need to cash out anonymously as well and a plan to have income on the books (or else they wonder how this guy making no money affords his lifestyle)