I disagree that QF is doing what AA is doing. AA's exemption for their own members is part of the OW rules. So an AA can enter using OW status, but they still can't use their own domestic lounges as per the OW rules. QF not allowing QF members flying QF metal to bring in a OW guest is breaking the OW rules. So the only way around that is to say that OW status is not recognised - this is what most ppl are saying but nobody has provided any evidence this is case.
tbh I can't explain why QF would not allow a guest flying on a QF(not the same) flight or other OW flight into a QF lounge. My interpretation of the rules say they should, with the exception of flying on a QF marketed, but non OW OPERATED flight (eg: EK, NF, etc)
re the AA thing.. QF does allow its Golds and Plats into domestic lounges on purely domestic routings (I suspect one could even argue that it's the "included Qantas Club membership" that is providing the access - certainly not the OW status). My analogy with AA treating its own elites differently to other OW elites in their own lounge seems to me to be exactly the same as QF treating their own elites differently in their own lounges though it is obviously not the exact same policy. I still feel the anaology holds. Others will obviously feel otherwise and that's fine
(of course the entire reason that the US majors - AA/DL/UA) do not provide lounge access to their elites for purely domestic flying is simply capacity related, and they too have paid membership programs - in this respect QF and probably other OW airlines like BA, AY, CX etc) treat their own elites better in their own lounges but we're talking far more people in the USA.
I'm a UA *G so I have some experience with that side of things.
I take the point about QF not wanting to pay for outside plebs, but this is incredibly stingy, given a) they have to do it if a QF member brings another OW member into any other OW lounge and b) the situation where a QF member flying QF metal wanting to bring in another OW member would be rare. In any case, this still doesn't excuse being outside the OW rules.
but it's not QF paying for "outside plebs" - QF charges those other airlines for use. Thus, in the case of an EK flight but QF customer, it's more likely it's EK saying "we don't want to pay for them unless they're on our flight" - that was my point.
yes if a) happens, QF is charged for both those instances because the passengers are entering that OW lounge as OW elites. That's part of the oneworld agreement. Again, when a QF elite enters a QF lounge, I think it's best to treat the idea as their OW equivalent level as being irrelevant more or less. QF status is recognised by other OW partners and access provided per those rules, just as QF will allow a CX or AY elite into any QC when flying QF(or other oneworld flight)
with respect to b) QF are treating the passenger entering as a QF passenger into their lounge and can apply whatever rules they like to their own passenger IMHO.
I'm not saying it's obviously consistent, customer friendly or even fair, but I am saying that I do agree with those that believe QF can and do treat their own passengers in their own way and is not really related to their OW status because your OW equivalent status such as sapphire or emerald is only relevant when entering another airlines's operated lounge or on their operated flights IMHO.
(just as if I am flying AA domestic and if I'm an AA elite I can't enter, but if I'm a QF WP, AA will allow me in due to the oneworld agreement and as such I could guest an AA guest in - even if they weren't flying AA that day, but another OW airline (but in that case it would be international travel, and then the scenario changes, but I hope the general point is made without being too confusing.
I do feel that this page:
https://www.qantas.com/fflyer/dyn/flying/tier-benefits#benefits-of-platinum
(and Gold etc) is very specific that one's QF Status privs are separate for you accessing QF lounges.
So, in theory, a QF WP couldn't bring a friend flying CX into the QF F or J lounges at MEL or SYD, but could take them into any other oneworld lounge. Maybe a better example is SIN or HKG, where they could take non-QF flying guest into CX lounges.
my 3 cents