Stack Overflow is a “community site” https://www.sciencedirect.com/science/article/pii/S0164121218300517.
Is the Elixir Forum a Stack Overflow for Elixir?
SO has an annual developer survey https://insights.stackoverflow.com/survey/.
“Over 100,000 developers took the 30-minute survey this past January.” https://insights.stackoverflow.com/survey/2018
The Elixir Forum uses Discourse https://www.discourse.org/.
Other languages use Discourse (Rust https://users.rust-lang.org/, Kotlin https://discuss.kotlinlang.org/, see https://www.discourse.org/testimonials).
Docker uses it https://forums.docker.com/. Atom too https://discuss.atom.io/.
Is there too much gamification on Discourse?