[hyperpape]

Though the right comparison is

   default <T> Extension<T> contraMap(Function<T, S> f)
   foldMap :: Monoid m => (a -> m) -> t a -> m

I also prefer the Haskell syntax, but it looks like more of a difference because the implementation is inline.

[logicrook]

To be fair, I afterwards thought that for some people, especially when taught with OOP, would see some functional abstractions as obfuscation. Each type of abstraction (objects, higher-order functions or continuations) work best with specifically designed syntax. I didn't like Scala too much for this reason, as it seemed a too bizarre combination (from a syntactic POV), as a contrast with Ocaml.

Anyway, tastes and education play a role there, but to me the arrow notation is way easier to read, as it is what I would write on paper.