QF dropped SYD-EZE service and decided to codeshare with LAN for 3 flights per week SYD-SCL ... so that is what QF thought of the revenue on that route! Not sure there would be much traffic HKG-PPT given the alternatives of Thailand, Bali, etc. all of which are much cheaper and closer for those wanting a beach vacation. NRT-PPT makes a lot more sense; maybe the airlines do know a thing or two when deciding which routes to fly.