It still bothers me that you remarked that it's a well known user who is doing this, since if it wasn't, you most likely wouldn't have made this thread In the end, a lot of sellers move neopoints from other accounts to shells to keep the money there and secure it to later on to sell them, as you know. It just happened that this particular one happened to be known and didn't clean their traces.
Sucks to be a cheater and get judged by other cheaters imo