> In fact according to the SO dev survey Scala and Haskell are used by almost 5% of professional developers

Here's the data:

https://survey.stackoverflow.co/2022/#most-popular-technolog...

According to that, Haskell and Scala are used by (a bit less) than 5% together. Something seems a bit off about that though. I find it hard to believe that Python is used only 20x as much as Haskell, and I say that as a massive Haskell fanboy.