I disagree with him both about the usefulness and harm of CoCs.  There are jackasses, and not having preemptively adopted a CoC, they can leverage the lack of clear rules to divide the community.<p>On the other-hand, once you have rules, there are some people who for some reason or another go out of their way to argue that a behavior violates&#x2F;does not violate the rules and completely ignore whether the behavior was benign or malignant, which is what one should really care about.