MYTH
QF has about 250 pilots over the age of 60
FACT. There are 111 pilots on the longhaul bidding list [A380,744 and 767] who are aged 60 or over, including quite a lot of F/Os and a couple of S/Os. That is about 7% of the longhaul workforce. So, unless there are a helluva lot of 737 pilots over 60 [I don't have access to that data to calculate those numbers] the statement "QF has about 250 pilots over the age of 60" is unlikely to be true.
MYTH BUSTED
Source : Longhaul pilots' details as displayed in Bidbook. I excluded a couple of simulator instructors on the list who are not coming back to line flying. It is laborious to count, but any pilot with access to the bidding files can check for themselves.