Fortunatly, repeatedly saying the same things

  "Scheme shares Haskell's unsuitability for production code"

  "it prohibits simple, but crucial, impure tasks such as writing to files and communicating over networks"

  "it is beautiful, but it is useless for hacking"

doesn't make them true. Plenty of people use successfully Haskell in production. I wonder what kind of motivation one can have to say with such emphasis a tool is useless while they simply can't use it properly.