I wonder if we need a feed for everything one might want to add.
Because people add a lot of info to, for example, their Twitter bio.
What needs to be a specific field and what is to remain just text?

What about academic titles? Many people include those. What about sexual orientation. Many people include it. What about disabilities? Many people include those as well.

I'm not making any judgment about those who include any of these kinds of information, of course. But why is it that preferred "pronouns" (in quotes because, often, possessive adjectives are also included) in the English language (or, I suppose, some other language in which it can possibly sense) deserve a specific field or, as you say, some people "need" it, but there isn't a specific field for other things many would want to include?

Obviously there can't be a field for everything, so what is worthy of one?