I end up using this for my own categorization, same as tags. I didnt notice it being surfaced to other people, is it currently like that?
I tend to think of it as "Today's work went well" "I have no strong feelings one way or another" and "Today was a problem for one reason or another".
The section would be more useful to me personally if I could look at a listing of things I rated one way or another, otherwise its a metric I'm not able to do any reflection on at a large scale.