Some language comparisons: Perl got where it is on the strength of its community which now supports many language-focused businesses. Community is also cited as one of the strengths of Python and Ruby which also have associated thriving businesses. Community is regularly cited as a problem with LISP (wait, wait, hold the spears - I'm a LISPer too!). PTL Scheme is the exception that seems to prove the rule - good community there.
Languages and tools do prosper and my point here is to highlight how they do so by building a community and what Clojure's "core" risk through making this distinction.
I see I may initiate a language dispute and that is not my intention. Other projects just seem the best source of supporting comparisons.