PM in this case is short for Punting Mad.. so no need to ban!
He had quoted you so no need to put PM? in his post, like I said we are sick of people ignoring the rules regarding PMs so if it looks like a request it's acted on.
Plus when you look at his post he has separated PM with a comer. "Who were you thinking of, PM" not "who were you thinking of PM.
Grammatically incorrect posts cause confusion.