Haven't been there, but as someone that is new to all this, I agree with all points.

Mostly, Nostr needs to be introduced to nonbitcoin places: high schools, universities, many other types of conferences with targeted educational promo material for each conference.

Creating a mini book "Nostr for dummies" with easily understandable steps how to set up, how to use it with inspiring manifest "why nostr" and how can be used could do miracles.