... This rating system was created so that I could remind myself generally what I thought about the movie without having to write a review and more importantly, make it easy to know whether I thought something was worth coming back to later. It doesn't always make sense but it works for me...
Like benji I use ratings as a “visual indicator of enjoyment” and to highlight the works I’m most likely to revisit or recommend, a “system” that has made easier browsing my libraries over the years.