Yes, people who promote a language are biased. But so are people who resist that language: they tend to have existing investments in their favourite languages,

Yes, people who promote a language are biased. But so are people who resist that language: they tend to have existing investments in their favourite languages, and have inertia in moving to a new language. I personally haven't decided to learn Rust yet, but I still appreciate being kept up-to-date on the landscape of programming languages, and I want to know about the cool new languages as well as the solid old ones.