I am glad someone is trying to find a way to go after those who abuse the internet by way of anonymous trashing of another person or company without any fear of retribution. I have seen and heard of many instances where these faceless assassins maliciously trash undeserving people and when the victims ask for relief from the owners of the blogs or service providers, they are told the federal law says you can’t sue us (meaning we are safe so we aren’t going to tell you who the abuser is). That has just cried out for a way to get to these people.
I don’t believe everyone’s identity should be revealed; just those who cross the line and commit actual defamation or violate other laws.
Given the noise level of the internet, these bloggers are more akin to someone on the third deck at a crowded football game screaming "you suck" at the quarterback.
Unless there's proprietary info involved, the corps are better served by ignoring the dolts, if, like the quarterback, they can even hear them.