I've never had a problem selling or buying off craigslist, but yes this type of ad is becoming more and more prevalent. I've responded to one of those ads just to see what would come of it. I got an email saying that he was out of the country and he handled the selling through this other company. To send the money to them via money order and he'd make sure the bike was sent to me. Sure he would. He didn't answer any questions so it's obvious that all of this is automated. Must be getting people to bite or they still wouldn't be doing it.