You can now set custom pronouns (he/him, she/her, they/them, or type your own) and a custom gender label (up to 20 characters when you pick "Other") on your profile settings.
Right now these don't show up anywhere, but might be added to legacy and kumos user profiles soon.




You know, I didn't even notice because I put in a more specific gender label by default, but you're so right. Nonbinary as a whole shouldn't just be relegated to "other" or "custom" at all. I wholeheartedly second this.