Hackers threatening, governments responding

In a recent article by Zoe Kleinman "

Cyber attacks against Australia 'will continue",

An activist group that temporarily blocked access to key Australian government websites plans to continue its cyber attacks, the BBC has learned.

The group, known as Anonymous, was protesting against the Australian government's proposals to apply filters to the internet in the country.

A man claiming to be a representative of the group said that around 500 people were involved in the attack.
More here
Chinese hacking attacks

What do you think of this behavior? How would your respond to these questions?

1) Is this behavior reckless?
2) Do these acts seem justified, or should those involved have tried a better way?
3) Supposing this had been done to YOUR WEBSITE, would your answer be different?