I guess it is somewhat like paying in cash for your groceries: While anonymous, only you buy at this time of the day your favourite 3 food products, a cup of gluten-free instant ramen and a period product.
I would be concerned about this scenario:
- Company X has your TV data (but doesn’t know your name, etc)
- Company Y, Z, … know your name and have data on you.
- They buy/share/whatever data and intersect it. Now they can probably connect the data they have on you.


Imagine using this stuff