I did completely forget that our guidelines had a gender section (and also missed your comment, sorry!). I made a tentative change now, but I’d like for people who know more about this than me to check it and make sure it makes sense - we can amend it further if needed.
I’m also deprecating “other” since it feels “non-binary” and “not available” cover the lot, but I won’t remove it yet - some use cases I didn’t think of might come up either with discussion here or while trying to clean up the existing “other” entries.
The new text for the guideline:
Use the gender the artist identifies as. Use “non-binary” if the artist identifies as something other than “male” or “female”. Also use “non-binary”, as the widest option, for anything that would seem to require more than one gender, since that is not currently possible (e.g. “non-binary trans woman”).
For characters, the fictional gender of the character should be used. This might not match the gender of a person who performed the character.
The “non-binary” gender is not intended for use with entities for which the concept of gender is illogical, such as companies. For those, use “Not applicable”.
The “other” gender option is deprecated and should not be used.