I unchecked the "publish to feeds" checkbox on this note. So that means it will not show up anywhere except on my profile page if someone clicks it. It's not a private or locked down post, it 's just reach limited on purpose. I explained it here too: https://yafbog.com/u/christopher/p/234-posts-can-now-be-published-or-not-published-to-the-main-feed-or-search-if-you

Posts can now be published or not published to the main feed or search. If you don't publish it to the feed, then it doesn't count toward the daily limits since it only shows up on your profile. Posts can also be republished every 24 hours too, but each one counts toward the daily limit. Use case for not publishing is to make a lot of posts without feeling like you're flooding the feed, or to have semi-obscurity without setting a photo or profile to private.

This is a note. Notes are text posts that are too small to be a journal entry. Great for status updates or to pontificate. *There are no actual rules on when and how to use them. Use whatever makes sense.