> i.e. if signup is "email and credit card number" then you're going to be hard pressed to explain why a similar option to cancel does not exist

So you argue that to cancel a subscription, you should have to provide your credit card number again. If a check on the credit card fails for some obscure reason, you cannot cancel your subscription.

This is what "subscribe is as easy as unsubscribe" also means.

I mean, that is precisely the court’s job to interpret the law. Your take is just a deliberately twisted one, it wouldn’t stand a chance in a court setting the same way as a willful offense can’t be defined that precisely, yet there is generally no problem with it.

Sure: but if it fails, then the card is invalid, and the card no longer can be billed. Again - you wouldn't get away with saying "well we couldn't verify the number" as standard practice - you'd just get sued and then punitively fined if it was found to be a lie.