Postal money order?

I can see where a prolific seller might prefer PP. As a buyer, I'll probably continue to use USPS. I don't like paying the PP fees, and I don't like paying the added fees/interest charged by credit cards on these purchases. So I pay cash for the USPS mo. What I like to do for the seller is to take pic of the USPS mo I just purchased and email it to the seller, so that he can see the "goods" in advance of his receiving payment, so he's in the loop and knows it's for real.
I think some people are conflating USPS mo's with Cashiers Checks, and other private mo companies, which are more commonly forged.