Honestly if it’s like the viewing data I saw when I worked in cable, your watching habits are not remotely unique and you can be more effectively targeted using the data pulled from a credit check.

Viewing data is largely used in aggregate to make decisions about content. They’ll collect demographic data because it’s useful to know, but by and large it’s all used in aggregate or as cohorts because there really aren’t enough permutations. On a streaming service like Netflix or Disney there just isn’t enough content for people to look all that different at an individual level.