Umm, I would hope he's joking by the time he get's to talking about using the would be mugger's credit card. He does realize that the would be mugger could easily claim that he was the one who was mugged to the cops, and the poster would be then be charged with mugging, theft, credit card fraud, vandalizing a car, threatening the DA, etc.
I would hope he's joking about everything after stopping the would be mugger.