That was really good. It’s something I hadn’t given any thought to , but the fact that First Person Shooter didn’t exist as a term when Doom released, it was interesting seeing the progression. I remember as a kid referring to Heretic and Hexen as Doom-clones, but wasn’t really cognizant of the term as it fell out of use in favour of other descriptions.
Even without development skills, you can still contribute by helping develop and maintain good documentation for your favourite projects or helping with testing and bug reporting.