I know I could of bought this like a year back from "Snot" on HF.
Decided against it though. I actually went to choose between epic and Rouge, and Omen. epic had some weird glitch, and it seemed like Rouge was owned by an employee, so I bought Omen and got banned/consolebanned/tag deleted anyway.
Anyways, don't know anything about it now.
Oh my god. Anybody can "Scam" a gamertag. A quick call to Microsoft (This is how I solve everything, ,lol) explaining that there has been suspicious activity on the account lately. They then check the IP's and ban the person you just sold it to, you then get the account back and viola you scammed somebody. It's really not that hard. (This is also a very good method for securing tags you jacked, get them to ban the oG Owner.)