Bluesky is a federated social network built on ATProtocol. Rules: 1. Follow
lemmy.zip’s site-wide rules. 2. All posts must, in some way, relate to Bluesky
or ATProto. 3. Do not make duplicate posts. 4. Do not post x.com [http://x.com]
links. Useful Links: - Web App [https://bsky.app/] - Official Ann...
When the server closes, the communities will stay visible on other servers, but any new content posted to them won't federate to other servers. As a result, they will live on in a sort of "undead" state. (Example: https://sh.itjust.works/c/bertstrips@feddit.de (feddit.de shut down about a year ago))
To address this, I would recommend the following actions:
Set each community to "only moderators can post"
Include a link to wherever the community has decided to move to in the sidebar of the community.
Prepend the string "[Retired]" or "[Closed]" to the display name of the community.
This would inform anyone who comes across the communities afterwards what the situation is and prevent them from inadvertently posting to a "dead community".