Interesting to see this formalized. When I was in grad school and graded undergrad homework/exams, I could most definitely recognize the students by their coding styles after just a few assignments. Every student ends up developing their own habits, and they're quite easy to spot in something as repetitive as code.

I remember teaching a Matlab class for engineers and scientists that was about 50/50 male/female, and the women tended to have much neater code. Code written by males often had comments all jumbled up, inconsistent number of spaces between braces/operators/etc, incoherent variable names, worse names for functions, and so on.