So, one sec... somebody, as in Cheaty McCheatface, who runs a social account, has never looked at analytics to see how many times his posts have been shared, saved etc? If you run a business account, you know to look for these things, how else do you justify your pitches for AD requests? Oh pack it in, would you? Absolute poppycock.
If you don’t like people saving your posts or you’re so amateur at social media all of a sudden, then I would recommend you don’t share *everything*. Or anything. Either/or.