Hi. They have cleaned the scams up a lot on ebay. Not all too sure about craigslist. They are still out there, but harder to spot & not as frequent. They will have a dynasty, or whatever & have an outside contact email on the auction. When you contact them, they will try to get you to send them money via western union. It's a basic 419 style scam. The scammer uses a stolen user ID, so you can't really trace them. Now, scam artists are using a one time use ID & making it look like a legitimate auction. You pay, they blow you off. Not too common, but some are using paypal to transfer money around after you pay them with it. If you go online under "Romanian scam" or go on ebay & do a search in guides under "Tractor scam" You'll get an idea.
http://thescambaiter.com/forum/ is a really good site to get educated as well. Like I said, I wouldn't buy a Dynasty on ebay unless I could pick up locally & pay then, or knew exactly where it was coming from.
I knew a guy that got hooked for $1800 on a Romanian scam like that. He paid with paypal & the money just disappeared. You just have to use common sense & be careful whenever you buy on the internet. Buy on new, you'll know what you're getting & you won't get any surprises. Good luck! S.W.