Why Is Pisano Happy with Clojure?

Here's a recent comment from somebody working at Walmart https://news.ycombinator.com/item?id=19728502

And here's one from a developer at Netflix https://news.ycombinator.com/item?id=18346043

I have a friend who works at Apple, he says that a lot of iTunes backend code runs Clojure. Here's a recent podcast from one team using it https://www.therepl.net/episodes/15/

Personally, I find it really weird that people keep questioning if companies are actually using Clojure. It's like people just can't wrap their head around the idea that big companies might be using a non-mainstream language and that it solves problems for them.

I have friends who work at Walmart Labs and Apple. Clojure is not just being used, they are diligently building more stuff. Apple is actively hiring Clojuristas. Walmart did hiring rounds recently, not sure if they still have open positions.