pixelfed.social has an itemized list of pronouns you're allowed to use on your pixelfed profile. you can't just type into a plain text box, there's a list that you can choose from. you can choose up to 4. they're almost all made up words that don't exist.
there are many things wrong with this. at least 3.
my list of things wrong:
1) this is a useless feature that should have been deprioritized and the time used elsewhere
2) it should be a freeform text field, it's way more time/effort to make a list
3) now someone has to update the list because there isn't an "other..." option, increasing the time sunk into this useless feature
4) the 99% use case is not at the top of the list
5) nobody, and i mean nobody, knows that you need to command-click to select multiple items in a multiselect list