Not buying that Sunny, I'm off on QF1 tomorrow and I'm not expecting any unreliability. Tickets bought and paid for by myself, will do the points upgrade thing and have a nice holiday.
I expect to depart and arrive on time, equally I accept sometimes things don't work like that so I'll just adapt to anything that happens. QF seem no better or worse than any other top tier airline in this regard, never have, never will.