@django If you mention someone's account, they will always be able to see the post and reply no matter what visibility you use, even private mentions.If someone replies to you then you may see non-followers replying to that reply because it's not your post. However, they will not be able to see your followers-only post unless they are a follower or unless you mention them.If someone follows you and you accept their request, then they will be able to see your followers-only posts.