The law said that even "Optional" meant they needed individual written permission. As I recall, they interpreted that to mean a check box or button click was in

The law said that even "Optional" meant they needed individual written permission. As I recall, they interpreted that to mean a check box or button click was insufficient. A potential downside is that my predictions are less effective because I don't get to find that because you and I both liked Monk and Pink Panther, I would probably also like Psych, or another show you liked. If this required mailing in a letter to Netflix so they could use your data, it would never work. I would be fine with it being opt-out, or even opt-in. I would be curious what the response would be if you had to opt in to get useful recommendations.