I was asked about that kind of "programmer universe" stuff during my interview process with my current employer. I said I didn't have a GitHub, never been to a programming conference, didn't participate in the local dev scene, and didn't really program on my free time. I said in my free-time I like being outside, hiking, camping, and fishing...It didn't hurt me because I got the job, of course, I'm working for a utility company and not some flashy SV/NY tech startup...