In slovenia and neigboring countries there's a huge mesh of probably hundreds of nodes, some connected via radio, some via mqtt with people only working on expending the mesh and nothing else....

the result is predictable... a few "test? can anyone see this?" every few days and most of the radio channel is used up by signalization between the nodes. Then somone adds a new node in some area further away (parents' place, work, whatever), sets up mqtt, connects two such meshes together, and we get the same 'test?' but now in italian.

Making it smaller (city-wide) and have people actually talk there would be much better, but for now, everyone just wants to make it bigger.