You have missed the entire point of my post. Will you, personally, without using your answer as a virtue signaling position (like you kinda are), use that feature seriously?
It's a large development investment, and from my experience with actual representation numbers of people who truly want/need tertiary or further pronouns , a TINY return on that investment.
Would it be nice? SURE. COOL. More people enjoying a game how they would like.
Is it worth it? I postulate it is not.