What is with these shady Craigslist posts?

[Peter Kehr]

Hello again BiggerPockets!

I've been scouring CL for deals in my area. When I go to roll by a property, its either (at best) not the right address according to the ad, or (at worst) not even there. What is the end game to these kinds of posts? Today an ad was posted at 8AM for a SFH and when I went to look at it 2 hours later it was just an empty lot that didn't even look like it came from the same picture.

Have you come across these kinds of ads? What is their end game? I've called a few but I'm thinking they are just trying to collect numbers to spam. Anyone have any tips for spotting the fakery early?

Thanks!