Not judging anyone's personal decisions, but let's remember that, like the rest of this site, this board if for Ethical Hacktivism. I don't think anyone would argue with the fact that what they are doing is illegal.
I guess the point of trying to have an 'ethical' hacktivism board is to encourage people to protest and make their voices heard while still remaining legal.
I agree with you, posting this info is just the first step into who knows what its eventually going to get to the names of the people that took out Osama. These people feel its important for everyone to have this info, I feel its going to eventually going to get good people killed.