Imagine you know nothing about Erlang, as the poster was pretending. How do you decide if it's worth your time to learn more about that language/platform? Certainly what the official website tells you factors into that largely.

You seem to be looking into this from the perspective that everyone must already know what Erlang is all about, so there doesn't need to be an effort to reach out to new users - which would contradict the questions the OP is asking.