The fact that she had her face online probably helped fuel the stalking...I really hate this internet habit that people have gotten into...
You raise a good point!
She should have worn a burkah. Just kidding. Folks have a right to engage in social interaction, w/o having creeps violate their right to do so, and that's what those blogs are.
Cho needed his clock cleaned a long time ago. His stalking and arson should have earned him some jail time. That, along with his known psych problems should have resulted in having his guns grabbed, before he could escalate the matter.
Doubt it. Take a look at how many kids have profiles on Myspace or Facebook. Hell, I have a Facebook profile - my graduate student association uses Facebook for some official communications.