I agree with you notanan2 - I respect the wishes of trans people not to be called by their old name or referred to by their original gender, however you cannot re-write history. If a woman gives birth to a baby girl, then that will forever be the case, no matter if the girl subsequently transitions to the opposite gender. And while I can appreciate the frustration experienced when people get names and pronouns wrong, I think that a matter of fact correction is warranted. There is a campaign where I work, asking us to include our preferred pronouns as part of our email signature. You might think that those who do so are highlighting that they are trans and in effect that this is a form of 'outing'. However everyone is asked to do it, whether trans or cis, and if we all do it then it normalises the practice and helps people avoid misgendering others.
My pronouns are she/her