This is one of the feedback areas. You will find these on the sections of this website. A section is different then a page though. A section would be "sports" and a feedback area there would include your thoughts about all of the pages within the sports section (example would be basketball).
Now for this one to the left, you can go ahead and rate it on this page, and all of the other pages under home (tools, comments, etc.).
Also you can see that on some of the responses you can type what you think in. It isn't required, but i suggest that you do it, because it helps me make this website more enjoyable for you and everyone else. oh well, enough said, go ahead and fill out some response areas.