I haven't supported a grass-roots effort on TD.com since lobbying for the Columbia logo (thanks, Chicken
). I can get behind this idea.
As mentioned earlier, if folks want to be "cool" and try to abuse it, then BAM - banned. They can't say they weren't warned.
Of course, there would have to be a way to tell who is posting in the penalty box out of choice, and who is posting in there out of necessity.