blockcipher is refering to a new type of attack LN enables, which would be a (large) node/hub having the ability to ignore/drop transactions. It's roughly simil

blockcipher is refering to a new type of attack LN enables, which would be a (large) node/hub having the ability to ignore/drop transactions. It's roughly similar to how pool operators can create custom tools to suppress activity passing though their part of the network. https://steemit.com/ethereum/@dhumphrey/f2pool-manipulates-usd1-2-million-on-the-ethereum-blockchain-during-the-status-im-ico https://steemit.com/ethereum/@dhumphrey/f2pool-manipulates-u... The latter comment is in regards to the risk of providing liquidity in the more concerning design caveat of exposing keys in memory on an internet connected computer. The attack surface for theft of a LN node is now significantly higher than a normal bitcoin wallet.