Last year i noticed a man I respect a lot put pronouns in his bio: he/him
So I wrote to him and we had quite a long conversation about pronouns
uncomfortable for some people to suggest their pronouns, then the rest of us can make it easier by normalising it
But i have also come to experience that there is not a sweet spot in this debate were you can say I think sex is immutable and important and not be called a bigot.
1) call ppl strictly by sex
2) call ppl by the pronoun which comes naturally based on what you know about the person
3) never assume pronouns
1 & 3 are hardline. 2 is pragmatic & tolerant & realistically what most do
This friend did take the pronouns out of his bio (provisionally, he might decide to put them back :)