(½)
In my understanding, one reason why #Reticulum is not usable yet for the use case "internet-free communication accessible to many people" is missing multicast feature, meaning #groupchat s not working.
But now I come to the conclusion that #MeshCore has the same issue: Group chats (channels in MeshCore) are just flood packets, not guaranteed to receive every group member (only where randomly at time of sending the packet makes it through), and beeing flood doing a big burden on the network.