Very true and often conveniently omitted by LN fans. Lightning Network Whitepaper, section 3.3.4 states very clearly: "For this reason, one should periodicall

Very true and often conveniently omitted by LN fans. Lightning Network Whitepaper, section 3.3.4 states very clearly: "For this reason, one should periodically monitor the blockchain to see if one’s counterparty has broadcast an invalidated Commitment Transaction, or delegate a third party to do so. A third party can be delegated by only giving the Breach Remedy transaction to this third party. They can be incentivized to watch the blockchain broadcast such a transaction in the event of counterparty maliciousness by giving these third parties some fee in the output. Since the third party is only able to take action when the counterparty is acting maliciously, this third party does not have any power to force close of the channel."