I tried to read this thread but it was so... messy that I decided to log on after a long read-only and get the things straight (no pun intended).
Can the suggestion in original post be represented by this list?
1. Add the possibility for creature to have the binary gender not the same as it's sex;
That would make four genders from original post example possible, except without names for non-sex-gender-matching two.
2. Add the possibility for creature to have orientation according to sex or according to gender;
That would make possibility for Thailand-style five-gender system (correct me if I am mistaken Thailand for other country).
3. Add the possibility for entity to have gender preferition for position (think Elven queen has GENDERED token instead of FEMALE).
That would make some degree of diversed cultures. Those who don't like it because it reminds them of real oppression could just remove the tags, the same as now for Elves.
4. Add the parameter for entity clothing token to be gendered and in world gen it will be either masculind or feminine.
That would make some very flavoury degree of diversity amongst cultures, but need to have some checks. If both pants and skirts would be feminine you'll get barelegged adventurer a lot.
5. Add the possibility for entity to make one gender (like now), two (feminine women and masculine men), three (plus one of mixed cimbinations) or four (both of them) with procedural names.
That would complete the example of fourth-gendered society.
6. Add the orientation into the mix.
That will make five and more gendered socities possible, but also will complicate current orientation issue a lot.
7. Add for gods ability to prohibit some jobs for some genders (or all of them, by the way).
That explains itself
And the most important.
8. Add for creatures the impact of their traditionalism and worship levels for emotions if they forced to wear non-traditional clothes, or clothes not appropriate for their gender, or make jobs that are frowned by their deity.
Everything except the sixth should both be not very hard and do the work for most pre-Twentieth century sicieties.
Sixth would be good but IIRC Toady already find current orientation system too complex. Some modifications can also add the genderfluid, genderqueer and intersex people, but I'm not sure how.
Was my attempt to answer to original post and not to very strangely derailed discussion successful?