I disagree with the first teachers comments all the way. Just a stupid troll, as we all have seen or been one.
But:
I don't think trolling should be illegal yet. It is obnoxious, and at times
I've had to make my apologies. But in an internet society you have to make
sound distinct judgements on real and perceived threats. You must
commit a crime and not just be
exaggerating about circumstances that had nothing to do with you, to make a point. If they arrest under those conditions, not only does it reflect an attack on free speech, but hits the area of thought crimes.
This does go with my point on another thread however. Police and other agencies will go out of their way to find the people making inflammatory comments on, supposed, anonymous boards and blogs.
Power to the people and yes, even the trolls.