Are adult ebooks that one pays for reliably better than the the stuff on literotica.com?
It's hardly necessary to pay people to write, it's nearly impossible to stop them. Of course someone with real talent should be paid because then they will be able to concentrate on it without worrying about paying the rent.
But the best selling 'adult' book of recent time was Fifty Shades which is hardly a book of great literary quality so I suspect that the simplest way around the ban is to just read free stories.