Unless you have a very loose definition of"no one" that simply is not true.
Just off the top of my head:
Haxl at Facebook Bond at Microsoft Supply chain management at Target
Also see:
What part of "to a first approximation" was unclear?
https://www.tiobe.com/tiobe-index/
Haskell is in 47th place, which is consistent with where it ranks in every other popularity list I've ever seen.
I'm standing behind "to a first approximation, nobody".
Note that I'm not saying that Haskell is a bad language, or that Haskell programmers are bad people or anything like it.
I'm saying that the vast majority of programmers do not use Haskell. An anecdote about a particular group that uses Haskell (or even several groups) does nothing to refute that fact.