I'm profoundly puzzled by your statement. Most of the really high quality developers I've seen have at least poked Haskell - the really lousy developers don't e

I'm profoundly puzzled by your statement. Most of the really high quality developers I've seen have at least poked Haskell - the really lousy developers don't even touch it. One way to phrase my objection is that popularity is a really good measure of how many really bad developers exist for a language. I am not interested in being replacable by a really bad developer, working with them, or hiring them. Haskell (and a few other languages) occupy a very nice space where entire classes of errors are wiped out by language design (null pointers); other classes are strongly limited by the type inferencing. This bonus in particular scales non-linearly with the LoC of your codebase due to the interaction of multiple components of the codebase all having to be type safe.