Good thing to know if you are honest and want to do this for your own account. The truth of the matter is, this only gives hackers more of a reason to gain other accounts (either through stealing and/or trading) and in-turn changing the original information to benefit their desire and their cause, avoiding any chance in becoming caught.
Sorry. I am a bit cynical with the self-interests of a few on the game, at the moment.
I don't know. It is a really cool and useful glitch and I'd use it if I wanted to change my D-name, but it's changing stuff around that could make identification of the real owner of a pirate more difficult in the future if it's stolen. Always a flip side to things. Thanks for sharing this with us, Jack!