I sorta had this same experience with JCotton. One of my hobbies is rowing. I have never met another black rower out randomly in my life. If I have, it was at a regatta or competition that brought out rowers from around the country.
Apparently, JCotton is a rower, too. And not only that, he named dropped a number of black rowing foundations that's just not known to the general public.
I did ask myself, how is it possible that I randomly run into another black rower on a hip hop site, but also, he's apparently has done things with Jim Dandy, which is a rival club of mine who we do events with every year, and I have never crossed paths with this fellow?