Anyone else receive low offers right away ?

Seem like everytime i list something for sale i get offers within the first hour . They are hundreds less than asking price . Are people looking for flipping oppertunities here or what ? so annoying .
Have you ever sold a car on Craigslist? First hour or two every time I list a car or motorcycle I get several silly offers that never pan out. Same thing. From experience I expect that. Just like Audiogon I ignore the first couple and then find a nice reasonable person to sell to and it all works out.
They are testing you for desperation, figuring they can turn a quick buck if someone is desperate to sell and needs money NOW.