People like being part of a big fandom? The user might just be more satisfied by a recommendation that sorts them into an interest group — a fandom, a following, a subculture — than by the maximally individualized recommendation.
The effects are too big for that to be the answer. Look at any graph, the hockey stick is extreme. The top tiny percent get vastly too much traffic for it to be fandom. And it is financially against the best interest of the company involved.
People like being part of a big fandom? The user might just be more satisfied by a recommendation that sorts them into an interest group — a fandom, a following, a subculture — than by the maximally individualized recommendation.
The effects are too big for that to be the answer. Look at any graph, the hockey stick is extreme. The top tiny percent get vastly too much traffic for it to be fandom. And it is financially against the best interest of the company involved.