@strypey yeh tho I think you can't change to follower only after a post has gone viral afaik.
I feel as Fedi grows tools to curate the visibility of, and pings from, replies will improve quality/reduce harassment more than contribute to censorship.. Thinking of newspaper comment spaces both rejecting comments (which is softer than blocking a user/instance) & highlighting 'top comments' at the top, which wd also be nice when a reply has led to a long new interesting subthread, but is a bit lost.