How did they get the records from Blizzard?
Seems to me you can't just ask for gaming records from a company. There are standards and regulations. It is kind of like this. If someone breaks into your car, and steals your radio, the cops aren't going to dust the car and put much effort into it. But if someone breaks into your car and shoots a guy in there, you can bet they will do more than ask questions.
My point is that, usually it has to be a legal case in the favor of the state for them to lean onto a company into forcing them to give up records. In some cases, the government askes without a warrant and the companies just give the info anyways. Such an example would be yahoo/google when the goverment pulled ALL of the data for the last decade or so. That being said, every single person that is reading this right now, has used the internet between now and 10 years ago. The government is complining information into large databases to sort and classify different segments of society. Lets just hope you don't fall into the radical fringe class, or you can be your life is like 1984 and you don't know it.
Let's take it a step further and get hypothetical. We all know what spyware is, and keyloggers. They are illegal, yet they exist extensively. What is to stop the CIA or what ever covert branch from having a 3rd party front company shelter them for data collection? There would be no law against that, and now that I think about it, possible legal. If a company got the information, they could willfull just hand the information over to them. But again, lets pretend its not just a simple key logger. Just about everyone has a webcam of a mic on their pc. Doesn't take much to get a trojan executed on a remote system that isn't too secure, and once that is done, you can not only watch their desktop, but literally watch them. What is to stop the government from doing this to us? We would never know, and if you reported it, they would "look into it" but I am sure you personally will never hear one way or another as to how it pans out.
But, as if I wasn't displeased with WoW enough as it is lately, to hear that they gave over documents is kinda ridiculous. Now I realise perhaps they could get a warrant or summons or something. But you would think that playing a video game might fall under the category of "Pursuit of Happiness" and thus you would think you would be protected. But then again on the flipside, it sounds like the parent was a horrible one that neglected their kids. I am not trying to defend her I assure you, just that it appears rights might have been violated.