Netflix has a small problem in my mind that continues to ruin their suggestions of what to watch and therefore their customer experience. 

What is the problem? 

SHARING

Netflix allows multiple customers to share one account. Thats great, but imagine for a second that in a family you have the dad who watches hardcore action movies, the wife who watches romantic comedies, the teens who watch twilight and the kids who watch animation movies. Under the one account system, the algorithm mixes all these up and continues to suggest the wrong movies. One example could be the latest twilight movie suggested to dad who just wants to watch action movies.

what is a possible solution?

SUB-ACCOUNTS

Within the login system, the user should be allowed to pick a sub-account that focuses more on their choices and better improves the movie suggestions for that person. Dad launches Netflix and selects his profile from a list created for the users sharing the account. This can be set to a default account such as mums account is default on her phone app, or no default (at home) allowing users to always choose upon launch. 

Such a system would tremendously improve the suggested movies and TV shows for each individual sharing an account.