Are we becoming a nation that is trying to discourage bad behavior by displaying even worse behavior?

An acquaintance of mine, who was on foot, got into a bit of an altercation with a woman in a parking lot who was in a car. My acquaintance was outraged that the woman in the car didn’t give her the “right of way” as she was crossing the parking lot, which she felt was her due as a pedestrian. They got into a bit of a shouting/insult-trading match. She posted it on fb, and the responses, almost invariably were along the lines of “You should have kicked her side mirror off!” “You should have kicked the side of her car in!” “You should have reached in the window and punched the bitch!”
I posted, “With great dignity and class you should have said, “I’m sorry, Ma’am. I didn’t see you.” Of course, my response got 0 likes.

At one of our local schools there is a phrase spelled out with plastic cups, inserted into a chain link fence, that reads “STOMP OUT BULLYING!” So…stop bullying by bullying the bulliers? What?

It just seems so counter-productive to me. What are we trying to accomplish with these attitudes?