I think you are an anomalous user. I'm not sure why you're OK with rating 1-5 stars but not a thumbsup or down. I think you're just upset because they are changing.
3 stars = "not a bad movie, but wouldn't recommend"
4 starts = "decent movie, would recommend"
5 stars = "great movie, would definitely recommend"
A binary choice doesn't have any weight to it.
This is actually rude of you, bordering on ridicule. He explained very clearly why he is dissatisfied.