If you order online with a card for home shipping you are doxxing yourself. All card processors use acquiring bank that ultimately has an account with the Federal Reserve. Every transaction and the person behind it can be surveilled by various agencies in the US Treasury and 3 letter agencies without a warrant. They can get a warrant after the fact when they want to come after you using the warrantless data to guide their investigation. What's more likely is that your bank will suddenly close your account without a reason (but really because of a purchase you made), locking you out of the financial system. The fact this guy's card processing has not been shut down means either they haven't noticed yet (unlikely), or they are using it as an intelligence gathering operation. Buy local, leave your phone at home, and pay with cash.