I blame this on the egos and the expectations of early adopters and contributors. They came from a point of senior systems programmers. As the language grew in popularity, they were unprepared psychologically for dealing with new or junior programmers: the level of questions put forth were things the original crew had learned early in their careers and took for granted.
It is often this way in early languages. We need to always make room for those who are just learning, or are not experienced as those who initially created the language or space. I have seen this improving in the Golang community. The more new people come in, the more it will improve.