Hi Spotify and friends!
Just posting here to thank you for this privacy feature!! I did not see this option in my program until this morning. It actually means a lot to me, to keep some of my listening habits to myself, despite this being a social music community!
I have been meaning to post an idea for exactly this option — to toggle my outward feed / activity sharing. This is because I scrobble music for myself, but I hate to be "that friend" to spam my friends with my guilty-pleasure!!! It's embarrassing, and frankly, I would consider it rude! Anyhoo, just giving you my thanks. I really appreciate this feature. :)