I don't need to believe, I just have experience here (my own and my friends). Yes, initial impressions about LISPs were "wtf!?!?! parentheses?! it's unreadable mess!!!", no exceptions (well, probably only me - I was lucky enough to get Common LISP as my first language back in 80s). But, all of them, when forced to deal with this "mess" for few months, got converted to LISP religion and really don't want to switch to other languages now.
Also, Clojure is not your "Common" LISP, it got way more cleaner syntax with approx 1/2 of parentheses compared to CL, carefully crafted by really smart person (Rich Hickey is best thing happened to IT in 21st century) to be as practical as possible and easy to start with.
I'm not doing much of JS work myself last years (mostly some nodejs client bindings to our services and time-to-time client side JS) but I tried both coffee and Clojure scripts in real projects and while I can agree with ALL points about coffee you posted here and 'd like to avoid using it in prod if possible, Clojure Script just worked for me. I even used dommy instead of jQuery and (while it's really tiny ~1KLOC lib) it provided everything needed to solve your typical web 2.0 tasks.
And while it can't be answer for everyone, it still can be answer for quite few developers around here. If you want, I can help you with small follow up "Answer for some of us" article (don't try to contact me through mail though, registration/login doesn't work for me here and I'm forced to use fake email for each comment, skype: theiced should work).
Keep up great work, these posts are really awesome.