Comment by Chris_Newton

Indeed. Category 3 seems to be about developers who insist on using Gooby regardless of whether or not it’s a reasonable choice for solving the current problem. What about developers who simply have Gooby as one tool in their toolbox, know how to use it, and enjoy doing so when an appropriate opportunity arises?

I once wrote some Haskell professionally. It was a successor to a previous generation of the application that I had written in Python and maintained for several years. Using Haskell was my choice and it was made because some of Haskell’s strengths would address specific pain points learned from that experience. Meanwhile, everything else I wrote for that client was still being done in mainstream languages for mainstream reasons and there was never any suggestion that we would rewrite anything else in Haskell or adopt it by default for any new work, so I think this situation is clearly distinct from category 3 in the article.