mmmm,
Just to clarify;
I had a 1000 or therabouts departure on 3K.
There were about 4 3K flights departing around this time. I took my chances with a 3K boarding pass and was greeted by the lovely sign.
The next QF departure was to PER??? and not until very later in the day.
Basically the lounge was outside the QF arr/dep times and hence the sign... Come back later for QF deps.
I was suprised, especially if O/W Emerald status, but 3K the QF lounge at HKG didn't want to know me.
Oh well, just turn up and see what happens.
Good luck.