Here we go again. There seems to be a rash of provocateurs on this forum. They post in various topics with various aliases with no thought to engage in dialog but merely to stir things up for their own amusement. Unfortunately, they suck more serious-minded folk into interminable and useless back-and-forths. Recent posts on threads such as "Why don't bikes stop at stop signs?" and "Friends of Briones house win again in court" contain the most recent examples.
There is no way to exclude them, so the only way to combat these people is to ignore them when it becomes apparent what they're trying to do. To answer them is to make them happy, because an answer hands them another chance to provoke.
I'm not ranting about civility or niceness, just time and effort wasting.