D casually mentioned and dismissed + a suggestion

[Bienlein via Digitalmars-d]

"You are making a cool project and we'd like to contribute to it, 
but we don't know and neither feel like studying this silly D".

This is indeed a problem for many newly created languages. Scala 
has somewhat managed to create its own eco system with Akka, 
Spark, Spray in a specialized area like concurrent programming 
and big data. Also because Scala has found some liking in 
academical circles (e.g. Spark, Scala STM). I don't know how 
things will look like for Kotlin. Maybe there will be a niche for 
Android development. For Groovy there is basically only Grails as 
a killer application.

For company internal development those languages might find some 
aficionados, but for open-source development exactly that "but we 
don't know and neither feel like studying" argument pops up. The 
rise of Scala started with Akka. Go has CSP-style concurrency as 
a killer feature (10k problem solved out of the box, much simpler 
concurrency). Rust fixes the problem with manual memory 
management being error prone. So you need some killer 
argument/feature/application. Otherwise you always face this 
counter argument.