If Alice makes a followers-only post, and Bob replies to it, to whom should Bob's reply be visible?
@evan
I would say, To: Alice, cc: both Alice's and Bob's followers, possibly cc: or bcc: a theoretical Collection of all participants in the thread who have not muted the thread by leaving the collection?
@silvermoon82 what does the conversation look like to those of Bob's followers who don't follow Alice?
Edited 16d ago
@evan
I think subsequent replies should CC both Bob's and Alice's followers, so those who follow Bob but not Alice would still be able to see all subsequent replies.