RoastedDuck190 I omitted explaining which terms were being used.
Qpoints are only used for determining status level and have a validity of 12/24 months from the date flown.
Qmiles are much more useful in that they can have value to you. They are the Great circle miles flown between two airports. But to this you need to add the extra ticket class bonus to obtain the base miles for a flight. It is the base miles that are used for the 4X promotion and the great circle miles for calculating an extra bonus because of your status level within Privilege Club.
These Qmiles can be used for free flights on both QR and any other Oneworld carrier and for upgrades on QR. How many miles you need for a free ticket or an upgrade can also be seen from the Qcalculator. Qmiles have other uses such as excess baggage allowance and for shopping at HIA.