Some fundamental issues of Nostr that make it difficult to scale (but can be fixed):
- NIPs are not versioned. There’s no way to tag which version an event is using, which can lead to divergent interoperability issues.
- List updates are all or nothing (leading to them being nuked in certain scenarios). Updates should be incremental.
- Replaceable events don’t have versions so the created at timestamp is used as a proxy to determine freshness and that could be incorrect.