Haskell over the years

How has the usage of Haskell changed since 2011? back then it was good for writing toy programs like project euler solutions and underfeatured windows managers. Now I took a look and it seems to be used for toy programs like underfeatured http servers.

>>5
Please use the [code] tag and paste the source code in your post. I don't want to visit an external site to look at the source code.