Just to nip any alarm in the bud, we were *not* emailing actual
coordinates, just the location description, and nothing we weren't
already showing publicly on the calendar, BUT, we're not doing any of
those things any more.
If we do adopt the partial privacy approach, it'll be more like the
political body that contains the publicly visible accuracy circle,
e.g. if your obs is private, your coordinates are in Burlingame, VT,
but your positional accuracy is an area larger than Vermont, the
location will be displayed as "United States" or more likely "North
America".