There are two potential answers to this issue:
- Block communications with Amazon.
- Disable the cause of the communications.
(2) requires learning a lot about the internals of the firmware.
I.E: Will be time consuming (probably by a lot of people).
(1a) Blocking can be implemented on a person's home network
(1b) Or within the Kindles' own firewall.
I posted about (1a) today, will follow with an update of (1b) RSN.
Both based on the Kpw, v-5.3.1 firmware.