I've always found ScottW to be pretty pragmatic. If Martin Odersky favors multiparadigm programming that nonetheless leans toward object-oriented methods, Scott

I've always found ScottW to be pretty pragmatic. If Martin Odersky favors multiparadigm programming that nonetheless leans toward object-oriented methods, Scott Wlaschin favors leaning toward functional methods as a default. As far as whether he's in line with "core principles of functional programming", that's maybe a phrase that's well-designed to start a fight. Even more so than in object-oriented languages, different ways of doing things tend to cluster around different functional languages. In broad strokes, what he's doing seems fine coming from a F# developer. I think it would translate well enough to Haskell, though I'm nowhere near as experienced in that language. In Clojure, on the other hand, I'm guessing you'd want to do something completely different.