Actually, I think there's some merit to writing code that is readable to outsiders, for several reasons. First of all, with a not-quite-mainstream language like F#, you're more likely to have team members joining your projects who are lacking the relevant in-language expertise. Making code more readable for them without significantly harming readability for an expert seems like a fine tradeoff. Secondly, one benefit to F# is that the code can read almost like pseudocode, which opens up the possibility of having domain experts (that is, non-programmers) review code, in which case the same tradeoff also makes sense (see e.g. Jane St. Capital, where traders review some/most of their OCaml code).