Yes, I'm curious to see how they deal with a response to the messages. Seems like it would be a lot of trouble for them to do anything besides send some fake messages and not reply to them (although I guess they could automate those, too).

It would really be interesting to create a second account, or even a second paid account, and see if any of the messages were exactly the same.

Because it could be one of those services that is hard to cancel without cancelling the credit card.