My dd is off to university this year. The residents office has set up a Facebook group so that the students can get to know each other a bit before they arrive. So hundred of students have all put up a few pictures and a bit of a blurb about themselves. Mostly along the lines of 'hi I'm x, from x, going to study y, hobbies are x, y, and z, I love my cat/ dog/ rabbit, can't wait to meet everyone etc'. One individual has used the opportunity to tell everyone that they identify as non-binary, and they/them pronouns should be used (alongside pictures very very similar to those posted by every other female student). dd was massively cross with me when I referenced this individual as 'her' and commented that this was unlikely to be a good way to introduce yourself to a bunch of strangers. Most people find the wrong pronoun thing pretty alienating, a good flag to say that the person is most likely to bring trouble in their wake and is best avoided. I doubt that is really the aim.