Comment by reil_convnet

> Erlang because stability.

Maybe because of WhatsApp acquisition ? Some services might still be running in Erlang. Last I heard, Erlang was being replaced by C++.

> Haskell because elitism.

Haxl used to be a project at FaceBook, not sure what Haskell is used for now there.

Thoughts as an outsider. I dont work [neither have worked] at Meta.