Hell of a headline, but...
To delve into this intriguing topic, the researchers conducted an online survey with 328 initial participants, eventually narrowed down to 44 heterosexual male guitarists who were fans of metal music. The participants ranged in age from 18 to 47 years, with the majority being from the United States and Poland. The majority were single, had a bachelor’s degree, and identified themselves as middle-class – a demographic representation typical of the two most represented countries.
This is really not a study
TL;DR: It's about the warez "scene", specifically about music pre-releases. A decent read, but one you may have seen before.