BookCat, once you have registered your device, the fact that you keep it in airplane mode is practically irrelevant. That is, it is only relevant if you plan to never, in the lifetime of device, allow it to connect to WiFi. While the Amazon can't contact you it most certainly knows you exist. You can have kindle offline for years, connect it once to WiFi, to surf wiki or use Bluetooth, and all the info that they collect from users constantly connected to their Amazon accounts will be collected at once from your device.
Which brings us back to unregistered device being the only sure way to keep one's privacy. And not having the full use of device one owns without jailbreaking and risking rendering it useless.
|