Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Guy Allen is an obsessive motorbike hoarder who writes columns for the Australian motorcycle press. His take on riding, buying and sharing bikes with his family and always entertaining. His yarns always reassure me that my 5 bikes in the shed is quite conservative. A great read.