Regardless of the semantics, my point was that Anonymous hasn't accomplished anything aside from a feeling of satisfaction. Use whatever language you wish.

I'd say justice is more than legal punishment, it is punishment appropriate to the crime. If you steal from me and then I shoot and kill you, that's revenge but it's probably not justice.

Justice is meant to break the cycle of vengeance. Justice is based on objective morality whereas vengeance is based on feelings. Justice is what has cause western civilization to be so successful. On the other side you have dictators and despots.

Very cynical, and wrong. Revenge is carried out by the victim or someone who is emotionally attached. Justice is an objective third party, punishing based on evidence and an established standard which the offender has knowingly agreed to and broken. (By being a citizen of our country, you have implicitly agreed not to murder, for example, or by signing this contract, you explicitly agreed to complete the work.)

Sure, justice gets twisted on a regular basis. But that doesn't mean it doesn't exist, as a concept, as something different from revenge.

I know what poetic justice is. I'm reminded of an English professor who said that it was so-called because it only happens in poetry. :-)

Regardless, poetic justice is more about fate making the good guys get their reward while still being good and the bad guys get punished as a result of their actions. This isn't a case of fate. It's a case of someone (deliberately) posting someone's social security numbers online for everyone to see. Was that the just thing to do? I suppose that's debatable. But I don't think it meets the literary definition of poetic justice.