It is a small community of mostly kids aged 15-25 as far as I can tell. It doesn't seem like any professional adult game developers are part of the community (I got an inside view when I took my son to RDC this year).
The top game developers are making millions of dollars per year (they're paid in Robux and converted to USD).
In short, thriving ecosystem with lots of kids having fun doing creative work including creating games, writing code, designing graphics, designing sound effects.
When I heard about how Tesla was training it's AI - without describing objects but instead through direct observation - it reminded me of Heinlein's "Door Into Summer" (1956). Heinlein's character teaches a multipurpose robot how to do any tedious human task through direct observation.
It’s how I accidentally learned the Win32 API
Q: How do you identify the AOL window? A: Look for an app with titlebar = "America[space][space]Online"