CoMaps now has more than 7k subscribers across different social media platforms – today reaching 7,777. And the biggest growth is on open-source platforms:
Mastodon - distributed microblogging
Matrix - distributed group messaging
Lemmy - distributed discussion communities
Bluesky - microblogging
Pixelfed - Photos
SimpleX - private messaging
If you have not tried these, check them out!
OSM discourages including any temporary road closures afaik, they are very particular about that. So it would not be very useful to rely on the little data that exists about it, since it may also not be up to date in many cases.