Yeah, but the request isn't to include some random language, it's to use the fast implementations of any given language. Why wouldn't you, in a site that benchmarks speed?
I think not to do so is unhelpful, actually -- if you don't realize they're are JITs for Python and Lua that aren't being included in the benchmarks, you will come away with a completely wrong impression about the possible performance of those languages.
Because there was a big spitting match a couple of years ago and it seems the maintainer picked its favorite languages and features and chose to represent (what seems like on purpose) others in a bad light.
For a couple of years I've wanted to "cull the herd" but
my curiosity (and interest in promoting experimental
language implementations) stopped me doing so.
The most that Alex Gaynor's nonsense did was prompt me
once more to consider whether the time was ripe.
Let's say I make a website called the Prettiest Person Game, and I throw up some professional crazy-awesome shots of myself and my buddies, and I also put up all igouy's old driver's license photos, and then create a whole bunch of different ways we can compare these photos and see who's prettier.
And let's say this site becomes really popular. And people start posting articles like, "wow, dilap is like 10x prettier than igouy in ever single way!"
And then igouy's friends go, "whoaaaa, hold on a minute, those are terrible photo's of ioguy! he can really look much better than that!"
And then I'm like, "Hey, I ain't got time for this -- I told you already these are not the only photos in the world. Go take your own photos if you want a different comparison!"
Measurement is highly specific -- the time taken for
this benchmark task, by this program, with this
programming language implementation, with these
options, on this computer, with these workloads.