In how far does gender change in your hypothetical metric with transition. If I take hormones for example, I would influence this metric.
Another confusing point would be how you try tracking gender, but having a gender identity value inside the metric. How would you even track this gender then?
Oof, that was a very brutal topic to read about, but very important. What monsters are those people that portray themselves as feminists and then go on and do such things. Gaiman is obviously the worst here, but Palmer seems to be also very problematic. And it goes to show that only because you were victim to abuse or are marginalized that it does not prevent you in any way to do the same thing to other people :(