It depends on how you send the cash. My personal fave way to send cash is EMT but then you don't even have a name just a Email address. I only deal with people I know from the forum or who have a good rep. Generally if you take the time to check someone out and they have a bad trader rating or very few posts that is a red flag. Take the same kind of time to check on someone's rep on the net as you would before doing business with them in real life.