To me it's clear that Nostr has a similar problem as Drupal. Reputation. Unable to reach new audiences outside their own bubbles.
Look at this page and replace the word Drupal with Nostr to get an idea 

Drupal.org
The Drupal Advocacy Program
Drupal is an open source platform for building amazing digital experiences. It's made by a dedicated community. Anyone can use it, and it will...