Earlier quoted context omitted.
> What matters is that people are operating in good faith. Any asshole can claim to be acting in good faith, regardless of what they've done.
You're getting downvoted but I think this is absolutely right... people are simply going to disagree with each others' definition of "good faith."
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.