Everything #OpenStreetMap related is welcome: software releases, showing of your work, questions about how to tag something, as long as it has to do with OpenStreetMap or OpenStreetMap-related software.
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
Join OpenStreetMap and start mapping: https://www.openstreetmap.org.
There are many communication channels about OSM, many organized around a certain country or region. Discover them on https://openstreetmap.community
https://mapcomplete.org is an easy-to-use website to view, edit and add points (such as shops, restaurants and others)
https://learnosm.org/en/ has a lot of information for beginners too.
Unfortunately the OSM website has a limit to how many it can show you at once and it shows the most recently updated ones, so you can't see how many unclosed notes still exist.
One of them is over five years old and requires on-site verification, so I know what I'm doing this weekend!
The mapcomplete.org/notes theme does that, and has some other fun features as well