Uhh, most people provide an account with the item... There isn't a right way to avoid getting banned, since there's always a chance that you will be banned. All items are traced the same, angelic halos have no special treatment whatsoever, it would be like trying to transfer a devil tail, basically.
Where exactly do you get your facts? Inside information proves they trace the Halos. At the very least they monitor the number of Halos in circulation. if that number goes up, someone has done some actual hacking and generated one, which they resolve quite quickly.