Can I have a link to the project? I had a similar idea, but panicked on how much data I would have to mine and gave up before it started.
Well unfortunately I keep all my data stored in my rectum and we have yet to come up with the technology to link it directly on the internet (a webcam does not fit in)
Also, on a more serious note, about that sex vs gender issue, this is a case where both side are absolutely wrong because no one read the text.
When you're an embryo, you may or may not go through a process of virilization, which is activated by a part of the Y chromozome. It's straightforward as it is. Either you go through virilization, in which case you're male, or you don't, in which case you're female. There is no in between. Virilization may be incomplete, anomalies may occur where the virilization process is activated because of a faulty X chromosome, etc, but the determining factor is ; does it happened or not ? So that's for your sex.
Gender as determined by Bourdieu is the collective representations linked to sex. They are "fluid" because representations differ between geography and time. Male roles and female roles are not spaceless and timeless, they evolve, what a shocker. That doesn't mean you can change them at will or make your own. They are part of collective representations.
So yeah. If your sex is male chances are your gender is male. Even if the male gender in western society includes the ability to carry female pronouns. This is part of the representations of the male gender.
Now hopefully we all learnt something and can avoid a sterile debate (lol)