That's funny, because if that is true he violated his own code of conduct: https://ziglang.org/code-of-conduct/#safe-constructive-only
> I do but I decline to share it here
The point is that everyone has different lines for what they consider to be "acceptable" or not. That is exactly the reason why codes of conduct exist - it's an attempt to find a common denomiator so that it can help foster a community where people can feel included without feeling like they are being attacked or insulted.