It always has little space on every web page or forum where users can leave comments and other information / comments or start chatting with others. Google understands how many reviews can help many people, allowing users to view messages on their own maps and expand on Google Search. It was discovered 9to5Google in the teardown of the latest Google Android app, where it appeared in the "Your posts" section that there was a feature that would allow users to leave comments on Google search.
It seems, however, that for the moment the operation is focused mainly on live sports games, where your feedback could allow you to talk about your favorite team.[via]