How to merge communities? Basically, I want to delete unused communities but move their posts to another community.

[Bakcodi]

Is there any technique to do this? During the initial days lot of communities were made, but now only handful are being used, and the rest has become a clutter. This is discouraging users from selecting the community while making a post, instead they would rather post it to the General community. Is there a way to remove those communities, but not delete its posts?

Maybe a direct database fix with some query?

[Nutomic]

You could do it in the database by changing the community_id of these posts. However this might not play well with federation.

[dessalines]

Queries are in #1445

You could then set the deleted column to true on the ones you find.

[malcyon]

Being able to move threads to another forum is a commonly implemented feature in software like vBulletin and phpbb. It helps keep conversation spaces focused on a particular thing. For example, if one particular sub-topic keeps repeatedly coming up, a new community can be spun up, and all new threads for that sub-topic can be moved to the new community. It's much better to have a thread be moved than just have it be deleted or locked. Just my opinion on the potential usefulness of this.

[dessalines]

Being able to move threads to another forum

This can be done via the cross-post button, which will copy the content to wherever you like.

For now tho, merging federated communities (equivalent to merging users) is out of scope for us.

[Nutomic]

I think this would be a useful feature, so lets keep this open. However its not on our roadmap, contributions are welcome!

[Nutomic]

On second thought, this is kind of a duplicate of #2345. Once that is implemented, multiple posts could be moved with an api client.