"if a bunch of them head over to Scala because they like the look of {{{}}} instead of ((())), so be it"

Unnecessary (if slight) nastiness directed towards (developers choosing) Scala. Unworthy of you (imo). There are significant differences between Scala and Clojure (other than {} vs ()) and trivializing a valid choice of one over another by ascribing it to fear of parantheses (or whatever) isn't a particularly compelling argument.

I've never really noticed Scala devs (leave alone book authors!) throwing darts at Clojure, but have seen the reverse (and at Haskell, on the Clojure mailing list but Rich Hickey shut that down hard and fast, good for him). Sad, and unnecessary (imo).

Scala and Clojure are both awesome and (totally imo) evangelizers of both languages should realize we are all on the same side (again totally imo, feel free to ignore).

Yes there are trolls in all language communities, but I think the expectations about the top developers in each community are (and should be) much higher.

Otherwise, solid comment. And hey, your book is awesome.