Ok, so here's the deal. I remember, I was in DoA one day. There was a monk there, in black clothes, and with panda bear near him. He had a catchy name, which I won't reveal, since I am not allowed to. Anyway...
He was spamming: WTS Armbraces, 60 ecto each, 200 left!
I thought he was either joking, or e-bayed them. So, I didn't payed much attention. But tommorow I found a thread on Guru, saying that items are beeing duped. And of course, my first thought was "So, that's how that guy got them!" Anyway, A-net started baning, and I forgot about that guy, since I was sure he got owned. But today...I came across him again! Yes, the same guy. Or maybe he got new account and made a char with same name - but it has to be him. He is even in the same guild. So here are some things I noticed:
1) I remember that that guy's guild once won in HoH, since I was watching random matches on Observe. They ALL had Tormented shields.
2) On my screenshots (provided bellow) there are 2 guys. My theory is, that they were partners, since it takes 2 people for duping trick. Both of them have same title, R2 Sweet Tooth. Duped candies for title? Highly possible. Duped panda bears? I would say so.
3) And one more thing. They both acted like kids. When I said to him that I have doubts of how he got his panda, I was told to, I quote, "STFU NOOB". Very mature. My tries to have any conversation with him ended with him insulting me and everyone else who agreed with me.
Here are the screens. Personally, I think that guy either didn't got banned or he did, but menaged to stash his wealth somewhere safe, and after he got banned he simply got new account and recovered his stuff.