Earlier quoted context omitted.
Rust is far more widely used than D in the industry, so it's no surprised that it's more supported at Meta. Re: Go, it's use cases overlap with the officially supported languages, so there's no broad need for it.
Nobody uses Rust for server side, literally nobody, expect Meta apparently The industry adopted Go as the cloud native language, not rust, i suspect the people doing the recomandation are ex-mozilla, or they literally HATE Go
Re: Programming languages endorsed for server-side use at Meta
#301I do seem to recall that Skylight as a famous example of Rust on the back-end. https://www.rust-lang.org/static/pdfs/Rust-Tilde-Whitepaper....