Same here. I don't use Clojure because it's niche, I use it because it's the programming language I'm the most efficient in (even though years-wise, I have the least Clojure experience compared to other languages), build the most bug-free software with that has acceptable performance and because as you said, it finally makes writing software fun again.

I think Clojure's niche-ness is a hidden strength as well, as the community is so strong and knowledgeable that you get very good help when you need it, from all angles. It's been a pleasure to use Clojure and interact with the community, even though the language is effectively built by one person instead of a committee (which, I think is another one of Clojure's strength [but not so hidden]).

Clojure is indeed niche, but this is compensated by being able to use Java libraries.

Clojure is absolutely niche. The only non-niche languages are COBOL, Fortran, C, C++, Python, Java, Javascript, Go.

Closure is awesome, but I wouldn’t define it as niche.