> it sends a copy per follower, meaning if 10 users on one server follow the same user on a remote server that remote server sends 10 copies of the message Tha

> it sends a copy per follower, meaning if 10 users on one server follow the same user on a remote server that remote server sends 10 copies of the message That's not right. Most AP servers operate a shared inbox. So you only need to send one message - no matter how many followers you have on that server.