We're not (only) concerned with the node runners we're concerned with channels. And it is certainly not impossible to figure out what utxo funds the channel. And the vast majority of utxos are tied to KYC info. As far as Unannounced channels providing privacy goes there's a new method for probing nodes announced every couple of months. if you're not aware of them then you're a really bad fudbuster. This one isn't even the latest https://link.springer.com/chapter/10.1007/978-3-031-18283-9_16 The simple fact is that let Ln is a beta network that has not been battle tested and you have no idea what privacy concerns you're really getting or if the ones you have now will last the next 6 mos. NOT a privacy layer.