The issue I've seen is a lot of folks put a part for sale then pack it up.
Take the damned pics and then pack it up. Act like it's already sold and ready to go. People post an item for sale and then act surprised it's sold.
Kinda like the idiot who gets up the cash register and then acts surprised he had to pay for his purchase, fumbling for his wallet, figuring out cash or card. Shouldn't you have this figured out before the cashier tells you the total?