I admire your deontological zealotry. That said, I think there is an implied virtuous aspect of "internet vigilantism" that feels ignored (i.e. disabling a malicious bot means it does not visit other sites) While I do not absolve anyone from taking full responsibility for their actions, I have a suspicion that terrorists do a bit more than just avert a greater wrong--otherwise, please sign me up!

Defense and Offense are not the same.

Crime and Justice are not the same.

If you cannot figure that out, you ARE a major part of the problem.

Keep thinking until you figure it out for good.

And also how fuctioning governments work: https://en.m.wikipedia.org/wiki/Monopoly_on_violence

Do you really want to live in a society were all use of punishment to discourage bad behaviour in others? That is a game theoretical disaster...

And sometimes one man's terrorist is another's freedom fighter.... (Not to defend terrorism, but it's just not that simple)