Post a typical response, pretending that you are the poster above you. Reply in their character and say something they would typically post that defines who they are It's kind of like roleplay... the only rule is that you can't complain if you don't like the mimic, just reply in their typical character instead Edit: Oh yeah, quote the person your replying to
four score and seven years ago...... our forefathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal........ we are now engaged in a great civil war..........