I don't understand. He criticizes them for sending a mail because it will cost them money? If he doesn't want to be on their list then he can use the can-spam m

I don't understand. He criticizes them for sending a mail because it will cost them money? If he doesn't want to be on their list then he can use the can-spam mandated opt out option that the email offers. Purge? Never if the customer doesn't want to be purged. I don't see the cost justification.