sandwich on Nostr: I think what you're missing is that when the PPM value of the forward is below 1 sat, ...
I think what you're missing is that when the PPM value of the forward is below 1 sat, the sender effectively ducks the PPM. Zero base fees encourage spamming the network with 400+ small payments instead of sending a single payment for 600k. The sender only needs to have patience and the ability to write a 20 line bash script, where as compute time, unsettled HTLCs, worker exhaustion and high value liquidity are the cost to the operator.