@lonelyowl me too, but it's just strange to think of allowing someone into your circle explicitly and expecting them to do things with your posts.
In that sense, even private posts could be sold because they allowed a follower.
Twitter allows you to follow, be followed, and interact with users of other services, just as you can follow and be followed by other users and stay in touch with each other's latest posts.
In addition to other mastodon services, it is possible to connect to various services such as SNS with different mechanisms such as Pleroma and Misskey, video services, blogs, etc., as long as there are users and posts by users.
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