I used to work at a company that called these customers ‘zombies’ because you were afraid that any next marketing communication would ‘awaken the dead’ and trigger an unsubscribe. They’d even go as far as to not send marketing emails to ‘zombie’ accounts that had been long time inactive. Bringing this back to Netflix, I imagine they would be concerned about a 0 activity customer leaving at any given time. Probably hard to forecast future revenue for them too. In related news, MasterCard announced they were going to start forcing subscription providers to contact you monthly with a bill so this might be the beginning of the end for easy revenue from inactive users.