I recently joined just the other day and I think you make good points, except for the deletion part. I think the reason why people feel like deletion is necessary is from decades of using the other social media. Deletion on social media is almost like an indirect form of censorship.

Nostr right now is a verifiable public record. Being able to delete something from a public record alters that history and can remove accountability for what was written. It also allows people to selectively curate their online presence, which is a huge and super fucking annoying issue with every other platform. Doing that can be something that contributes to controlling a specific narrative.

By sticking with this system where if you posted it, it can be attributed to you via your key pair, then we maintain full accountability for all things written at all times and nobody can escape it, no matter how uncomfortable it might make them.

A better solution could possibly be allowing edits, and then the edits are chained together to where the edit history is fully maintained and viewable at all times. This is something I kinda want just because I hate making dumb typos 😄