I'd be fine with a new definition that made them illegal, or at least put such heavy truth-in-advertising laws on them that nobody in their right mind would bit

I'd be fine with a new definition that made them illegal, or at least put such heavy truth-in-advertising laws on them that nobody in their right mind would bite given the real numbers you can expect. They're absolutely exploitative. I probably made the mistake of speaking a little too specifically for the US situation, though. Here, the criteria are (modulo nuance) roughly what I said for the FTC to care.