Honestly it might be generational. I wasn't even aware this was a thing until a year ago when I found myself doing it randomly when I returned to Canada (having been offered a job doing it). I'd spent so long in the industry just DOING miniature wargaming I didn't know there was a huge number of people who get their interaction with the community primarily online. LOTS of those people are a couple decades younger than I am.
But here we are and I'm neck deep in it. The more you know!