Communities in Lemmy/Mbin are not federated by default. So when you create a new community, it will only be available to your instance. At least 1 person from all other instances must follow it in order to make it available. This tool does that. It follows your community from all remote instances until at least 1 other person follows it.
You should pin this message, or maybe start a FAQ thread including this.
I think I’ll make a guide post at some point, this will be part of it.
Added to the sidebar just now.
This is also great for a new small instance, even if you don’t run communities, just populating your local all feed, so I don’t have to subscribe to everything… I can have a real home feed again
Indeed!