As an aside, I see there a gitlab project for the benchmark game - but I was surprised there doesn't appear anyone has put together an automated, open, bring your own language/code/patches version? Maybe with some community voting (eg: prefer idiomatic vs max speed)?
It's been on my todo-list over neat ideas for a while. I just assumed someone would've beaten me to it by now :)
I suspect it might have to do with resources - dedicating multiple cores to benchmarking isn't going to be easy to do for free. Might be feasible for low cost, though.
Why haven't you? That's probably why no one else has :-)
Instead be surprised that someone has continued to push the benchmarks game along, and that people have continued to contribute programs gratis.