There is also a voice, these data is to allow you to enjoy better service. There is a lot of logic. First, the service providers to provide better service, does not mean you can collect users' privacy data; Second, many companies do not collect user privacy options data service is not available, which makes many users can not choose to disable user privacy data collection, which is a use of market position and monopoly provisions of the King; then, all of the data did not provide data cleaning function, remove all users of historical data.