I completely agree with PokeMom.
A couple things to think about concerning mass rippers. WHY do you think they have so many usernames? They are trying to make themselves untraceable.
- They build up lots of positive refs and feedback, a lot of times with some of the most trusted traders on a particular site. They do a mass rip, discontinue trading on that username, create a new one, rinse, and repeat.
- Just because you've never been ripped by the person does not mean that you never will.
- Mass rippers start off by gaining a lot of trust and usually start with small trades, for items that aren't worth much. They build up a large amount of positive refs. You may trade with them dozens of times during this period, and most times the trades will gradually get larger. Then, you'll make a huge deal, usually for hundreds of dollars worth of stuff, and that is when they'll rip you off and disappear. But you aren't the only one they rip off. They'll also rip off another 20 or so people, or as many as they can within a specific period of time before anyone notices.