Earlier quoted context omitted.
Do you believe that if there was a way to monetize extentions devs would not be approached by data thives?
Not sure if sarcasm but will respond as if it's not. There are lots of business models to choose from - subscription - affiliate links - sponsors - one time charge, this one is tricky as restricting access requires a back-end that needs ongoing maintenance and server costs [edit: formatting, spelling]
Extension devs know the rules of the game up front and have no expectation of profit.