Eh?
1. Whoever did this did it because an opportunity presented itself. He has said as much in interviews. There is no code of ethics in the black-hat community - a target is a target. If there was a code of ethics then we wouldn't be getting SWAT raids on innocent people - though that is america, so isn't totally unexpected. And yes, they're all the same types of users.
2. Whoever did this is well known, as he's admitted it publicly.
And can we please stop calling them "Hackers"? It's totally the wrong term for this. You especially, John, are old enough to know better than that.
D.