warning paypal problem

I can see the use of Paypal and picking up the part, if:
They were concerned about getting robbed or
They wanted to use a credit card.
As for taking a pic, a buddy of mine was telling me his cousin had a Harley for sale on craigslist. Dude calls, wants to see the bike. Drives to house, a pic was taken a the guy left his car. From what I understand, he said he needed his license because he was test driving the bike. Made sense.
Guy left and never came back. The car turned out to be stolen. Bike has vanished.