I have posted a lot about the unnecessary personal attacks on this board. Just because its DC doesn't mean you are allowed to insult to just insult.
We can get in peoples faces, tell them their ideas or opinions are really stupid, idiotic etc be as harsh as you desire. But IMHO we can and should refrain from personal attacks. Attack the idea/position, not the person.
Fear is the path to the Dark Side. Fear leads to anger, anger leads to hate, hate leads to suffering.