It makes absolutely no sense to tag characters well established to be femboys or crossdressers with no secondary sexual characteristics to suggest they're female as crossgender, flat_chested, or ambiguous_gender just because they're being shown at an angle where you can't see their junk. There's even one of these where a character is wearing a bra with balloons under it. And despite that, the tags are locked as female. There's plenty of similar content on this site tagged male and femboy with no issue, including ones from vimhomeless or featuring his characters. This obsession with technicality does nothing but make searches more inconvenient and confusing.
Topic: Is there any plan to ever correct the locked tags on these posts?
Posted under General
If you believe that the locked tags on a post are incorrect, please report the post and explain why they should be changed.
In this case, the complaint has been voiced before but the arguments were not convincing enough.
https://e621.net/forum_posts?search%5Bbody_matches%5D=muscle+mouse
Tag locks *are* the correction
If you believe they're wrong you need to make a convincing argument against it