Unless someone calls the person and finds out if the item is 'sold' how can a person tell when looking at the ad?
Just one time did I get all excited about an ad for something I was looking for and I will say that I noticed that the person did write a little note saying the item was now sold. Thought that was great.
I have an ad on for a good boat for months now. I leave it on simply because so far I have never received one phone call or email asking me about it.

Maybe when a person sees that it has been on for a long time they just assume it is gone?
So I'm also just wondering, what is the answer to this question?