Would need to look at my spreadsheet to see how many QF flights I've been on - but am also tracking a grand total of 0 upgrades.
Around 250 QF flights since Jan 2001 here (after checking my spreadsheet). 1 accidental bump-up to F from J (after I'd upgraded to J with points and ladies hubby was bumped to F and they wanted to sit together so we swapped, much to my delight). 1 accidental op-up PER-MEL on a 743 after asking for an ODU and just being told 'leave it with us' and was only QPPS. When boarding, was handed a J BP for upper deck (My flight had been cancelled and I was shifted to that flight).
Only real op ups to date happened late last year in the silly season. SYD-SFO from Y to Y+ in J seats and ADL-MEL from Y to J (row 4 to row 3!). Was the 28th December on a very very full flight, beep at gate.
One of my friends got an op-up on his first flight as a NB, but that was 10 years ago also. I'm not expecting any more in a long time after 2 in 2 months