When did the Hugos become the Dancing Bear Award?

There's an old saying about dancing bears: "The marvel is not that the bear dances well, but that the bear dances at all." The uproar over conservatives nominating conservatives for the Hugo reminded me of that.

When I was young and reading f&sf, people like Samuel R. Delany, Ursula LeGuin, and Octavia Butler won awards because they wrote well. No one promoted them on the basis of their social