[Malice]

Cool :)

I use Python for anything related to text processing or webscraping. I use Haxe for when I'm doing cross platform game programming. I use React for web UI / front end work. Erlang for distributed stuff. In each of those cases I've tried other tools and the ones I prefer now seem much more effective ...

I've never done anything in F#

[ympostor]

You can do text processing and webscraping easily with F#. React is a framework, not a language (you can still use React with F# if you transpile it to Javascript). You can do cross platform game programming in F# too. And distributed programming of course.