Why does iOS not recognize Damus or Primal as apps that you can share content to? 
Discussion
Well how did you share this? Did it not work or did you want a lazy link?
I'm thinking integration and security oppose each other. Usually Nostr apps are known for not collecting user data and are probably inherently more secure than other integrated apps.
Posting a screenshot / pic is one thing. Sharing a url is more complicated. There are some workflows that are pretty universal and it’s a hassle to have to do it differently for each app