I wonder how they will greet Indranet since it will enable the elimination of nearby nodes propagating transactions by users there.

Also, the coinjoin technology is still young, relatively speaking, mostly being done by centralised or semi-centralised networks that match-make users for these transactions. What happens when there is a fast mixnet like Indranet and someone invents a distributed protocol for constructing coinjoins, and nodes of this network are available with client side privacy via Indranet?

And, obviously, don't tell them that only senders and receivers know where LN transactions are coming from and going to. Assuming they aren't concealing origins using an anonymising relay network, which a substantial amount are.

A transparent ledger does not leak user metadata if the users take steps to avoid it.

Monero's track record so far on avoiding inflation bugs with its simpler protocol is still holding, but its opacity makes it a target for attacks on privacy. Zcash, as the article mentions, is not included in the list of privacy coins. Probably because someone has the proving key's private part... But I'm sure nobody who has it is going to admit it, sorta seems like it might be worth a lot of money.