Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
On this Nylon Rope you can hardly put any clothes for drying because it bends a lot. Not good for drying clothes. Since I have used one otherwise I would have returned it. Sorry for this negative review.