I created an account, just to up-vote this request. I would add that the Matriarchy tag is the closest one we currently have, but it doesn't necessarily quite fit. Matriarchy implies a society where women are, politically, the ones in charge. However, a large element of what I would put under the "Reversed Gender Roles" tag is that women are the pursuers rather than the pursued in romantic/personal relationships which may be a bit different than mere political dominance.
If I sort the existing tags by how many series use them, I find 17 tags that have ten or fewer uses throughout all of scribblehub. If there's that many tags with ten or fewer uses, surely 10 clear examples of the need for this tag should prove that it would be a good idea?
Let me list 10 series where I think this tag would be appropriate, all from different authors, five of them quite large (>50k words more than 350 readers, with three of them more than 1000 readers), along with five smaller ones:
(1) Reverse World by Dictatellion, 72.1k words, 1660 readers (
https://www.scribblehub.com/series/474900/reverse-world/)
(2) Flip The Script by TheEldritchGod, 206k words,376 readers (
https://www.scribblehub.com/series/413476/flip-the-script/)
(3) Reversal by Eroos, 611k words, 567 readers (
https://www.scribblehub.com/series/489494/reversal/)
(4) Superheroine Seducing Accountant by ChastityQM, 377k words, 1247 readers (
https://www.scribblehub.com/series/461282/superheroine-seducing-accountant/)
(5) Wisher Beware by Snusmumriken, 221k words, 2696 readers (
https://www.scribblehub.com/series/291657/wisher-beware/)
(6) Superhero World of Reversed Gender Roles by FigSin, 25.6k words, 316 readers (
https://www.scribblehub.com/series/503153/superhero-world-of-reversed-gender-roles/)
(7) In the Reverse World, I’m Being Pursued by an S-rank Female Adventurer by Dejia, 5k words, 148 readers (
https://www.scribblehub.com/series/...-being-pursued-by-an-srank-female-adventurer/)
(8) World of Reversed Morals Is Too Much For A Weeb by Over, 0.2k words, 27 Readers (
https://www.scribblehub.com/series/419778/world-of-reversed-morals-is-too-much-for-a-weeb/)
(9) [Eternal hiatus]Re: Reversed Morals in a Supernatural World by SHIRO_IPPIKIKOKAMI, 1k words, 45 readers (
https://www.scribblehub.com/series/469367/eternal-hiatusre-reversed-morals-in-a-supernatural-world/)
(10) Genshin With Reversed Sexual Morals by PicaroWrites, 5k words, 57 readers (
https://www.scribblehub.com/series/536424/genshin-with-reversed-sexual-morals/)
Those are just the ones I read and the ones I found after about 5 minutes searching. There's probably a lot more that are much harder to find BECAUSE THERE ISN'T A TAG FOR THIS!
So... what's the hold up? Can we please have this tag?