Heheh..."Without any way of charging for access, or anyone willing to run their infrastructure, the vast majority of porn sites would go out of business." How ridiculous. The porn industry wouldn't go out of business if credit cards stopped working with them, they would simply favor some other form of payment -- probably 900 numbers that charge the monthly fee as a connect, then give you a password. There are probably other ways, too.

In addition, while it's true that these credit companies have every right to refuse service to industries of pornography, in the end I imagine they realize they'd just be losing business. Financial service is a cutthroat business. They probably can't afford to eliminate any source of sales.