I must be reading a different slashdot than you. The posts I've seen said things along the lines of "and then they're surpised when kids go columbine" and "this could make him go columbine" NOT "Hey! He should go columbine on their asses! That'd teach 'em!"
Now that we've got that addressed, let's move on to the second part. There's bullying, where pretty much every kid has been picked on at some point, and then there's chronic bullying, where it has become socially OK in the school setting to intentionally bully an individual. They are not the same thing. The first one is an annoyance and in some cases can become emotionally or behaviorally scarring, but if dealt with properly isn't that big a deal. The second one can reshape the victim, and is one of the nastiest things that humanity is capable of. For the victim, there's no escape from it. Ever. Even after they leave the school, that baggage sticks with them for the rest of their life. It's not something you "get over" -- it's something you learn to live with, over and over again.
Thankfully, I was always part of the first group -- but I had friends that were part of the second. Many of them are dead now (suicide, drug overdoses, car crashes, etc.). They all ended up with problems that needed to be addressed, but they'd been churned through a system that taught them that attempting to go to the authorities with their problems caused them more hurt and embarrassment without solving anything.
So why not address the root problem, and change attitudes towards chronic bullying? It's not something you just "get over".