my idea of traction/participation for a language is some nontrivial volume on github, stackoverflow, mailing list and IRC. OP talks about fantom, scala, Groovy

my idea of traction/participation for a language is some nontrivial volume on github, stackoverflow, mailing list and IRC. OP talks about fantom, scala, Groovy, Ceylon, Kotlin, Xtend, Clojure in the article (doesnt' mention JRuby or gosu, but they're worth looking into too)