What purpose does having 10000 reachable nodes serve? You don't need that many to make sure any client can retrieve the blockchain and can easily forward trans

What purpose does having 10000 reachable nodes serve? You don't need that many to make sure any client can retrieve the blockchain and can easily forward transactions. You don't even need to do any mining yourself to be included in this list. If I were to speculate this number has more to do with people using online wallets or places like coinbase rather than running the client themselves.