it occurred to me afterward that I would actually get *more* info from analyzing a monero transaction *if* -- like him -- I was the sender

sender -- the sender of a monero payment obviously knows who the sender is

recipient -- the sender of a monero transaction also knows which of the recipient's addresses got the money, whereas in LN, the channel that received the money is hidden from the sender

amount -- the sender of a monero transaction obviously knows what amount he sent

fee -- the sender of a monero transaction obviously knows what fee he paid

So I was wrong before when I said Kevin learned more from analyzing his own LN transaction than I would learn by analyzing a monero transaction that I myself made. He actually learned less.