Have only been op-uped once with Qantas. Numerous times with BA. Never with AA.
No op-up from Qantas ever.
20 year QP, mostly while working for several very large corporate customers who only allow Y. Several long hauls a year. About 10 RTWs in that time. No status except short time silver.
Op-upped by KLM from Y to J on my one and only flight with them !
Op-upped by BA from Y to Y+ for BKK-LHR.
Both without asking.
Used to get Y exit rows with Qantas 9 times out of 10 just by asking (I'm tall-ish) .. sometime given at checkin, sometimes in QP ... until Qantas decided to make money off them by selling to shorter pax. Asked at check-in about op-up a few times when no exit rows available - never got one. Single traveller, always well dressed - no jeans or sports shoes .. ie better than most Qantas J pax !? ;-)