You're the only one fabricating accusations about "analysing" in a discussion about how Kindles send data with whispersync, a system widely known to be used to sync data across devices.

More importantly, the only usecase mentioned in the discussion that resembles anything like analysis is synching page reads across devices, and tracking reading progress to compensate authors who make their books available through subscription services.

Either you know stuff about "analysing" that for some reason you're keeping a secret, or you're talking nonsense about stuff you have no grasp over.