@0xabad1deaabadidea Though people on the Internet may not always have the gender their avatar and name has… some cis men fem-code their profile on purpose, to get more attention, especially in men-dominated but merit-based environments (gamers, programmers). These are not trans persons, these are simply liars. Often they use drawings of girls instead of photos.
That doesn't mean the algorithm is useful, but neither are the criteria you give.