Comment by istvan__

How about reading what I wrote before you reply?

>What about programming in the large?

less code -> less code at large -> win

>What about efficiency of naive implementations?

like a stack overflow version of it the starters always come up with in Java? what exactly are you talking about?

>What about maintainability?

What does FP or any of this thread for that matter do with maintainability? You can write unmaintainable code in any language.

These are a very limited subset of what really matters in software engineering. (I would also remove the naive implementation part.)