I agree, when I saw their graph it seemed like you’d want to be below the mid-line. ie. More projects on github, fewer questions on SO implies a more useful language. That group of languages includes: TypeScript, Go, Rust, Kotlin, Elixer, OCaml, and Julia. Languages on the “bad” side of the line include Objective-C, Matlab, Visual Basic, ASP, and Assembly, ColdFusion and QML.