Right. Adam tells Ben to go die in a fire, and Ben says, "Come on, moderators, that's obviously a violation of the CoC." Then Adam says, "No, because I was only responding to Ben's offensive and unwelcoming language when he referred to a 'master' repository. I've compiled a list of Ben's violations, and I demand a review according to section 3, subsection D of the code...."
A good moderator will shut that nonsense down immediately, but a good moderator wouldn't need a CoC to do it. All the CoC does is give the troublemaker a tool to start playing rules lawyer, in the hope that the moderator will get tired of it and give in.
Some people think the answer is to have a CoC that's too simple for rules lawyering, like a one line "Be excellent to each other." But even that can be twisted, so it would be better as a project motto than as an official CoC.
