Technology is empowering teenage stupidity. Some kids go through a bad mix of negative emotions and a naive understanding of danger. In time these issues can become resolved and the teenager becomes a responsible person. This phase though has become more dangerous with the things technology lets kids do.

In my opinion as long as teenagers are a thing this is an inescapable trait of human life. Unless you are law enforcement, try to stay out of their way and not be a target.

Some people are psychopaths, and when they realize they can do this with impunity, they go mad with power.

I don't think there's any way anyone with a functioning conscience would do this. As far as I'm concerned, swatters belong in a psychiatric institution.