BYTEBALL https://bitcointalk.org/index.php?topic=1608859 doesnt have the dumb problem of finding other nodes by using proprietary slack service to talk to people and then a month later fail to have a working node because people shut off their "nodes" for a while.
How did Byteball solve this dumb problem?
Im not a very good technical expert, but I think at the moment there are running 12 Witness-Nodes and they are saving the Network. At the moment they are hosted by developer Tony in the Future it should be de-centralized and you can chose them in your wallet.
So at the moment the Network is not fully decentralized.