The Zombie Translator may have been used to create a suspicious looking craigslist ad as a "curb alert" for someone trying to give away artwork.
It is possible that zombies have posted this ad to craigslist to lure people a trap.
Another possibility is some sort of prankster has written these to try to scare people. Something that's totally NOT funny.
PLEASE use caution when responding to ads with this or similar messages.