Real post I've seen this week.
"Got some cheap stuff for sale if you want anything"
Cue 20 posts along the lines of;
"Have you got a patio heater hun?"
"No sorry"
Have you got a wheelbarrow?
No, haven't got a wheelbarrow.
Xx
3 days later the thread is still going strong. 20 people have been disappointed that the seller doesn't have what they want and the seller has made no effort to make any suggestion what she does have.