What I like about AT Protocol is the repository system, all posts are part of a repository, the content of which is signed as a whole, so it is very difficult to "disappear" a specific post... Nostr relay can easily ignore some notes. AT Protocol relay too, but it is very easy to compare it with PDS and see what is missing.

Nostr approach is great for infinite notes where you don't need overall integrity, - but specifically for microblogging I would really like to have that integrity.