yes these two options are good in steemit but if we want to make secret our post from any person is not possible in steemit and the privacy in steemit is a matter and i hope and want an more option that mute our own posts from othes if we want to save our post from any person
To me this is yet better than nothing. To make our posts to be (un)seen by a specific viewers is probably much more hard to achieve. If possible at all.