Here is my advice about codes of conduct:

1. Refuse to have one. If your project has one, delete it. The only actual function they have is as a tool in the hands of shit-stirrers.

2. If you're stuck with having one for bureaucratic reasons, replace it with the following sentence or some close equivalent: "If you are more annoying to work with than your contributions justify, you'll be ejected."

Eric S. Raymond