Can StackOverflow provide a technical solution?
When I write my question, answer, or comment, allow me to add markup such as <pronoun @CaesarM />.
And then StackOverflow will display the pronoun in the correct way.
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Or StackOverflow could take it one step farther. If I write a question, answer or comment with a pronoun, a dialog pops up asking me which username the pronoun refers to. The software does the rest.