I have bought and sold on Craiglist. When I place an ad, I say, calls only, no emails. I do this because of spam emails and very insulting emails. The worst email I recieved was when I listed a classic car for sale. The person who emailed me told me, they knew I was having money problems and offered me half of my asking price. I replied with a flaming email, pulled the ad and now, if I list something, I take calls only. I do delete my posting when the item is sold, but I don't answer emails