Wow, the level of discourse is hitting new lows. Why do we keep doing this? Are you really changing anyone's mind? 
Great question and even greater graphic.
Why are we doing this? We are obviously not influencing each other, except in a negative way. Perhaps those who read here but don't post? I can't imagine we are influencing any of their opinions in a positive way and are probably only providing entertainment.
Do you remember that psychology experiment where they told people that every time they turned a knob, they would cause an electric shock to a test subject? And, these normal, everyday people turned the dial up repeatedly even when told they could kill the subject? And, some of them actually enjoyed doing it? I wonder if that's sort of what we are doing. Either way, it's gotten beyond the acceptable level, and is mostly being used to insult and make fun of.
