I don't think the ".." vs "..." level of density is universal in LFSP design. Macros in Lisp/Scheme are words. See the sql-repeat macro with group-beginning? and group-ending? for example. It makes things more transparent than your typical LFM implementation would:
Then by your measure, is Perl the most-LFSP language out there? I think Perl reads like line noise. High-density syntax with clear, simple concepts is a desirable feature in a language. Assigning some function to every possible permutation of symbols (a la Perl) is just stupid. Ruby falls into the "just stupid" bin in this case.
The 10 doesn't print, btw.