I feel that this LW's case is exactly one where specifying pronouns is appropriate: people often get it wrong, the gender they "expect" to go with the name isn't the right one.
I started adding my pronouns after going to Worldcon 2019, where there were pronoun badges, because I realised just how many names of people there were from cultures I didn't know well enough to know what gender was "expected" to go with the name. As I work in an organisation with people from many different countries, many of whom we initially and maybe only communicate with by email, normalising pronouns for everyone can avoid lots of embarrassments. (Not to mention all the people called Chris, Alex, Sam, Ali, etc which even in anglocentric heteronormative environments don't immediately offer a clue to gender)
Short version: LW isn't co-opting a solution she "shouldn't" use, she would be doing everyone a favour by making her pronouns explicit
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I feel that this LW's case is exactly one where specifying pronouns is appropriate: people often get it wrong, the gender they "expect" to go with the name isn't the right one.
I started adding my pronouns after going to Worldcon 2019, where there were pronoun badges, because I realised just how many names of people there were from cultures I didn't know well enough to know what gender was "expected" to go with the name. As I work in an organisation with people from many different countries, many of whom we initially and maybe only communicate with by email, normalising pronouns for everyone can avoid lots of embarrassments. (Not to mention all the people called Chris, Alex, Sam, Ali, etc which even in anglocentric heteronormative environments don't immediately offer a clue to gender)
Short version: LW isn't co-opting a solution she "shouldn't" use, she would be doing everyone a favour by making her pronouns explicit