You probably don’t use Craigs list.
There is a lot of stuff listed there for free. I myself have listed things there for free, just to be rid of them. Most recently, a water pressure tank I didn’t want.
I have used Craigslist, I also wouldn't for one second think about showing up at a person's house un-announced and start ransacking their place. But then again I don't have a felonious personality either.
I remember a very old saying, "If it looks too good to be true, it probably isn't."