I would bet that the vast majority of pax buying red e-deals would not be able to use the QC, I mean QP. On an individual anecdotal basis, one pax or group might eat and drink their way through an awful lot in seven hours. But the financial effect of fare rules like this is obtained through the general market discipline imposed, and not necessarily what swings and roundabouts operate for one individual privileged pax. Most of the market buying these fares just won't bother coming to the airport until it's time for their non-changeable non-refundable flight, and QF gets the general effect it wants.