Netflix keeps your data, probably, because it helps with their recommendation algorithms. If they presented to you that they had fully deleted your data, they'

Netflix keeps your data, probably, because it helps with their recommendation algorithms. If they presented to you that they had fully deleted your data, they'd have to remove the data from the collaborative filtering graph. Ultimately they can do that if you explicitly ask, but as a routine matter of course why would they make their graph less smart off the back of you leaving the service? Keep data when account is closed: If the removal of the closed customer's data would render your system less smart and you are not in the EU. Remove data upon account close: If it doesn't impact the overall level of 'smart' of your service, if the user explicitly asks or if your servers are in the EU (data protection rules).