The day we know a language has made it is the day people no longer feel the need to suffix "written in X" to attract clicks.
This applies to Go, Rust, whatever. I'd love to see future projects stand on their own merits and be pleasantly surprised when discovering the source language on my own.
It can make a difference. For example, if this was written in ruby I might not bother using. On every device I'd have to get the correct ruby environment setup, install any dependent gems, and make sure if I have the gem path set correctly.
If it's written in go I know I can drop a static binary in my PATH and be done.
This applies to Go, Rust, whatever. I'd love to see future projects stand on their own merits and be pleasantly surprised when discovering the source language on my own.