If someone makes it clear they’re not comfortable with the way you’re addressing them, change the way you address them. If you can’t change the way you address them without making yourself uncomfortable, then stop engaging with the person in question
What about names? If I decide then and there not to use pronouns at all, and instead refer to that person by name, how would that weigh?
How about “that person” or “that user”?
If someone makes it clear they’re not comfortable with the way you’re addressing them, change the way you address them. If you can’t change the way you address them without making yourself uncomfortable, then stop engaging with the person in question
As long as they haven’t expressed discomfort at being referred to using regular nouns, then. Good to know!