I think community consolidation/aggregation is something that might want to be looked at. It’s possible to have a gardening community on multiple servers with different content. This will confuse people. So having a way to merge posts from two communities into a bigger community per server may be a good idea. So if you set up gardening communities on two servers you can choose to have posts show for each of them in your community. And making this a server or community setting still gives the ability to either have this or not have this if the communities are truly supposed to be separate. This would also give some kind of redundancy where the original community server can go offline but multiple different servers can still exchange messages that eventually make it back to the main community. Truly decentralized.