I watch anime and read manga on my freetime, which is most of the time haha. I almost never drop an anime that I watch. Usually, I will take the time to finish it to the end whether I like it or not.
My anime/manga ratings are based on whether I enjoyed them or not.
5 stars = I loved it. Probably became a favorite series.
4 stars = I liked it. Fun to watch
3 stars = Ehh, it was alright.
2 stars = Not sure how I should feel about this...
1 star = Didn't like. Probably dropped.
.5 stars = I need to re watch it. It's most likely due to it being really hard to follow/confusing.