Good point!
I didn't do a definitive headcount but QF 35 (MEL-SIN) had about 80 of us in Y today (May 20) so about a 30% load. J looked to be pretty full.
same same for HKG tomorrow - looking wide open across the board. Obviously off peak! (return fares for departure tomorrow were still in the $800 region for a return if that's any indication of how empty the flight is!)