A dossier is not for you, it is about you.

A dossier is not about understanding you, it's about making you understandable to a bureaucracy.

A dossier is context someone else maintains about you.

It's about distilling the key, sensitive data to make sense of you to someone or something that doesn't know you.

The word "dossier" implies something clandestine and nefarious, not aligned with the user's interest.

Dossier: a deep thing about you that has power that you'll never be able to see.