I note that one of Davis’ categories was friends from competitive gaming—I’d guess there are a lot of nerdy, introverted types there. Some other activities that come to my mind as having a lot of people from that demographic: various other kinds of games (video/computer games, go, chess, pen-and-paper roleplaying games), juggling, historical reenactment, Wikipedia editing, fiber arts (spinning, dyeing, knitting, etc).
I note that one of Davis’ categories was friends from competitive gaming—I’d guess there are a lot of nerdy, introverted types there. Some other activities that come to my mind as having a lot of people from that demographic: various other kinds of games (video/computer games, go, chess, pen-and-paper roleplaying games), juggling, historical reenactment, Wikipedia editing, fiber arts (spinning, dyeing, knitting, etc).