On EHell, practicing retaliatory rudeness (doing/saying something you know is mean, rude, or insulting in response to someone who has been mean, rude or insulting to you first) is considered unacceptable; aka "Two wrongs don't make a right."
So if you post that you were the RL victim of someone's rudeness, and you said or did something mean or rude in return; your response will not be considered acceptable or excused by most. Same applies to suggesting retaliatory rudeness in seriousness to another poster who is the victim of RL rudeness.