[imanaccount247]

>Links or it didn't happen.

To what? I'm supposed to link you to reality? How about since haskell is a general purpose, turing complete language, you demonstrate that there's some magical reason that it can only be used for "pure math problems" and nobody can be productive in it doing "real work". Why should a random nonsense claim be given the standing of fact and need to be disproved?

>friends (I know, it may be biased)

That's why I asked if it was true in your heart. Lots of people say things they think sound reasonable and believable based on other third hand information, but which are in fact made up. I have a very hard time believing you have so many friends into haskell and unable to write programs in it. Especially after teaching a bunch of PHP people who had never heard of functional programming (and half had never heard of types!) haskell in a few short lessons. Either your friends are some crazy statistical anomaly, or my developers are. Or perhaps your friends are apocryphal.

>GitHub codes I use

"I don't use anything written in haskell so you can't write anything practical in it" is a pretty poor argument.

>I encounter mostly language-oriented

Where are you encountering them? And are you sure you aren't just misinterpreting "practical" blog posts as "academic" because they mention something you don't want to hear like monads? Even most things I would assume you classify as "language-oriented" are still about solving practical problems.

http://ro-che.info/articles/2014-12-26-monad-control-type-sy...

That might sound scary to people who don't know haskell, but it is about solving a common issue with web development (and other server type programming) in a nice reusable library. Do you really think there's tens of thousands of people just sitting around writing haskell code that does nothing for no reason?