No it's not!
I don't go around shooting people to advocate gun control laws.
I don't go around stealing people's belongings in cars to advocate that people shouldn't leave valuables in cars.
This is vigilante behavior that should never be condoned.
When you think criticism - oblique, but clearly still harmless - is more of a problem than the behaviours, you are very much trying to shoot the messenger.
Put another way, "shoot the messenger" is a phrase used when an unbiased person, merely delivering a message of bias/harm from another, is attacked for the message.
You are not a messenger, when you perform the act/deed/thing yourself.
Everything doesn't have to be black and white you know
"Dooing good, through bad methods"
He should have been brought to trial
This isn't big brother with all the power systematically spying on citizens, this is a nobody with no power showing us a picture of ourselves. Both cases are happening, both happen against the will of the people, and yet which one do we allow to continue?
I'll also point out that the discussion we're having is exactly the outcome the artist intended.