Ex-Netflix engineer's 3 questions debunk 'terrible recommendations': your profile is polluted by passive data

Aiden_Tech_Ai · x · 2026-09-16

A user complained his Netflix recommendations kept repeating — until a friend who spent 4 years on Netflix's recommendation team asked three questions: does anyone else use your profile (his girlfriend watches K-dramas, his kid watches cartoons), do you press thumbs-down (no), do you rate anything (no).

The verdict: the algorithm isn't broken, it's uninformed. Three years of passive clicking with zero active feedback made the system conflate the whole household's tastes with his. A neat analogy for AI use: output quality depends on the context you feed it, not just the model.

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