It quickly degenerated into an all out attack on all cyclists who are “so smug and yet so many of them break all the rules of the road and put themselves, pedestrians and even car drivers at risk.” I foolishly dove in and pointed out why I sometimes have ridden on the sidewalk, because it is so scary to be on a bike in some places where the cars go so fast. One response, which I repeat in full so that I can parse, was this: