@evan@cosocial.caEvan Prodromou when I learned that a reply to a "followers only" post in the Fediverse meant that the replier can choose any visibility they can choose for their own posts, in a discussion that the original poster meant to keep among their followers, it was one of my most WTF moments about ActivityPub.
@panos well, ActivityPub lets anyone address anyone else on the Fediverse. You can even address collections of people, like my following list or someone else's contacts collection. The choices that are allowed in the Mastodon interface are a small subset of who you could actually address with ActivityPub.
If you have a fediverse account, you can quote this note from your own instance. Search https://cosocial.ca/users/evan/statuses/116029931820466523 on your instance and quote it. (Note that quoting is not supported in Mastodon.)