With the new CoC changes about gendered pronouns being discussed, and the different impact they have on different stack exchange sites, I wonder if having a different CoC for different sites has been considered. In my mind, there are 3 categories which could benefit from different rules around what is the correct writing style, specifically around the use of pronouns.
(stackoverflow, superuser, etc...)
Technical sites don't care about personal information. That personal information includes your pronouns. The CoC should reflect this on technical sites where personal information is at best noise. On these sites, pronouns and other personal information should almost never be included in the questions and answers. Its not a question of wether or not pronouns should be respected (they should), but pronouns should never be there in the first place
(history, skeptics, law, etc...)
Impersonal sites are those in which the personal information about the the person asking or answering the question is irrelevant, but personal information is relevant to the question/answer itself. An answer/question about a person should 100% respect that person personal identification, but the personal information of the people asking or answering these questions is largely irrelevant. Again, pronouns should be respected in the content of questions/answers, but the pronouns of the person asking/answering the question should be omitted in most cases.
(Workplace, Writing, etc...)
Personal sites often necessitate the use of personal information to get the best question/answer. Questions and answers often rely on personal experience, and some of the best answers I have seen are often because of the personal experience. Preferred pronouns should always be respected.
I think much of the conflict over the new CoC changes could be avoided if there was an official recognition of the fact that while everyone should be respectful of pronouns, the use cases for pronouns in different sites is different.