I agree, Rich has done a great job promoting and maintaining Clojure. BTW, he used to use Common Lisp. I first got to know him (via email) because of his wonderful Java <--> Common Lisp bridge.

re: ABCL: this is really a great project. I don't use ABCL very often but when I need it I am grateful to the developers.

Not just that. Clojure actually has a lot of features. It's not just "yet another Lisp on JVM". here's an excerpt from Joker page (Clojure linter written in Go):

Protocols, records, structmaps, chunked seqs, transients, tagged literals, unchecked arithmetics, primitive arrays, custom data readers, transducers, validators and watch functions for vars and atoms, hierarchies, sorted maps and sets.

Clojurescript was much easier to make because it was written in Clojure, not Java. IMO if we ever see Clojure that is hosted on other runtimes it will be written in Clojure and probably still will have to depend on JVM.

Right, I'd forgotten about that! I used it as an extension language for a Java program once. I didn't think it even had a compiler, but that was 20 years ago, and it appears to have one now.

Kawa was my first Lisp / Scheme and I dug it quite a bit. I wrote some wrappers for Processing called ProKawa which probably doesn't work with the latest Processing releases, but it was all very fun. Quil on Clojure is pretty good, and in general I'd say I've gotten more milage out of Clojure for sure.