You can split a NF account into several, and even optionally give each account their own separate DVD queues (so you can partition "3 DVDs a month" into 1 per 3 person household, if you want to). This also sections off ratings from each other's accounts.
Even worse the other queues can't easily find out if movies in their queue are streamable which is really irritating when I get a dvd that I could have streamed.
