I've always chosen piracy for the privacy. I don't need a bunch of services building a profile on my viewing habits and tastes, then sharing that data with other businesses and governments. If I want a recommendation, I'll ask a friend, not an algorithm.
I'm fine with recommendation algorithms if it was truly anonymous. The problem is that when you're paying for these streaming services, they have your identity, and most likely also sell your watching preference and habit data to data brokers.