There are many of benchmark projects that include D and don't appear to be struggling under any kind of massive burden. For example:
https://github.com/kostya/benchmarks
What are your actual reasons for not keeping D... "scala... and Clojure and ..."? The results in the previous link show D as a massive competitor (sometimes 1st place beating C and C++) on both memory and speed. Wouldn't the purpose of benchmarks be... to highlight useful, highly-scoring languages? Isn't that one of the primary reasons people read benchmarks?
(The D implementations are also often smaller in lines of code, as per this benchmark project:
https://togototo.wordpress.com/2013/08/23/benchmarks-round-t...
)
Do you see any mention at kostya/benchmarks of why ".NET Core" or Ada isn't included?
>> … benchmark projects that include D and don't appear to be struggling under any kind of massive burden.
Check when those kostya/benchmarks language implementation versions were released.
>> What are your actual reasons for not keeping…
I don't want to do the work.