Compared to the other streaming services, Netflix will get dropped long before even Apple TV+ in my household. Adding ad-supported tiers is fine, they just better never add ads to the current paid tiers. Furthermore, cracking down on password sharing is reason enough to cancel - it shouldn't matter what I do with my account as long as I'm paying. They already limit the simultaneous streams and that seems fair. They shouldn't be wasting time and effort figuring out if logins are coming from different households.