Kusama test network has 16 nodes have been punished by Slash

According to the block rhythm report, Polkadot first test network Kusama has opened 100 verifier node places on November 4, but 16 nodes in the currently verified verifier node have been punished by Slash, the penalty rate is about 10%. In the PolkaDot network, after the Slash penalty occurs, the system deducts the corresponding DOT from the certifier's quality deposit and all the quality deposits of the nominees who voted for the verifier.