In the current Nostr ecosystem, user profiles are often overwritten by different applications that maintain their own versions. This lack of synchronization and consistency across apps can lead to outdated or incorrect profile information. A unified, versioned profile system is necessary to ensure that users can maintain a single, authoritative profile that is synced across all devices, apps, and relays, while still allowing for personalization and extensions.

NIP Proposal: Simple Nostr Profile System

https://github.com/sandy-mount/sandymount/wiki/nostr_profiles