This is an attack on the Kademlia DHT. Why exactly does Ethereum use Kademlia anyway? Kademlia's main purpose is to find content distributed among a small per

This is an attack on the Kademlia DHT. Why exactly does Ethereum use Kademlia anyway? Kademlia's main purpose is to find content distributed among a small percentage of nodes. Ethereum doesn't need this, since the entire blockchain is stored on every node. And does the attack also work against other applications that use Kademlia, such as IPFS and I2P?