The highest GNUser experience is 100% freedom.
>some random person in your family putting all your personal data into her phonebook and calendar.
That problem is easily solved by killing them or not knowing such degenerates.
>you appearing in the local newspaper 20 years ago for a school project.
It's really not relevant that you did some project 20 years ago - ideally such information would be totally useless.
>the people you talk to running unsecured hard-/software that happily listens in on your chats post-decryption on their end.
Why do you discuss important things to subhumans?
>your neighbour's unsecured network tracking your movements.
Lead foil in the walls.
GNU/Glock is the easy solution to those who hurt you.
