Another candidate for consolidation? A bit of a tricky case, as the current largest community is not on the most politically centrist/neutral instance, and lemmy.dbzer0 which (in my opinion) would be a more closely aligned instance doesn't have a data hoarders community.
I like this because people showing up to those communities might think that topic doesn't have activity on Lemmy, when it actually does. Assuming the moderators are still active, the abandoned community can stay open to new posts (in case there are issues with the active counterpart).
I personally subscribe to both, so that I can get all the posts, but I post to the community I consider the 'main' community
I sometimes think that unmoderated communities should be closed, and just be left and locked with a pointer to the active one. In case an issue arises with the active one, they can still be unlocked and used as back up.