Yes, you can earn $KLAY for being a node or validator on the Klaytn network. You can stake the klay that you have earned to become a validator or node and multiply your earnings. By becoming a validator or node, you can help secure the network and receive rewards for each block that is added to the chain. At the moment, there are 109611222 blocks on the Klaytn network. So, if you are interested in becoming a validator or node, it is definitely worth studying how to do so in order to maximize your earnings. Count us in!