@celia definitely! Being able to determine the 'social distance' of the reach when you first share/publish something is very useful to allow more finegrained decisions on what to share, as well as to formulate it. I would love have something similar for my blog where 'close circles' would read more detail (like names, locations) than others e.g.
Nice article. Darius is on the right path with Hometown and Neighborhoods.
Also have a look at these #SocialHub topics that are related..
#ActivityPub Community extension:
(Pixelfed) Groups extension:
Oh, PS, #GoToSocial is also implementing local-only posting. The project is a refreshing take and developing rapidly.
Ton's personal Mastodon instance