Have you considered having a link somewhere on techdirt of past presentations? or maybe at least, the last one given? Don't know if that would spoil the talk, but might give non-techdirt visitors who follow the links a bit more on what you'll say.
From what is written above, it sounds like she was "identifying a police officer with intent to harass."
If our free speech protections don't cover screaming fire in a crowded theatre I don't see how they apply in posting police officers home addresses with the intent to harass. As long as they prove in court that her intent was to harass and not just inform.
What most likely happened is, large numbers of AT&T customers are compromised, and were unknowingly used as zombies to attack 4chan.
This to someone obviously incompetent at AT&T looked like 4chan attacking AT&T. So instead of blocking the customers or providing them with information on how to uninflect their computers, the problem still exists.