Google's John Mueller posted on Google+ a survey asking webmasters and site owners to explain what they think the Content Keywords report is in the Google Search Console.
John said he wants to "double check" on the perception around it. He wrote, "I'd like to double-check what the general consensus is on the Search Console "Content Keywords" feature." To do so he put together a survey that you can fill out over here.
It is a bit of a pop quiz to see if we really get the purpose of it. If we fail, I think Google thinks they failed on this report.
I find this interesting but at the same time, it shows Google cares and wants to improve.
So take the quiz over here.
Forum discussion at Google+.