Because it's not hugely relevant. Yes, Erlang is not a "fast" language by many metrics, but that [very often] is not the reason a team would choose to use it. The sibling and parent comments make up a fairly considered discussion regarding this. A comment in the middle of this conversation saying Go etc win in some benchmark game is a non sequitur
I was replying to someone saying that it depends of the library, the answer is no it doesn't depends of the library, Erlang is not a fast language and it's ok.
