Yes it's the ol' Haskell tax. As a part-time Elm enthusiast that's why I'll probably use it to build my own stuff to opensource/sell, rather than try to get a job doing it, lest my family goes homeless. Hyperbolic, but kind of true! However it's great for the company hiring. They can get solid code at a solid price. I've seen the same with a Haskell/Blockchain job. The company owner admitted in a chat channel that he would have said "Berlin Salary" rather than "Not quite SFO" in the job ad if he had know the response rate he would have got.