John Barnes, you need to ask the schedulers at SQ that question.
Pilots don't (generally) formulate their own schedules - that is left to the rostering and Fleet Planning department in each airline.
SQ will undoubtely still attract those pilots with the mindset of NEEDING to fly the biggest/newest/shiniest, rather than the more matured mentality of weighing up the financial & lifestyle issues. And, as In the slot points out, there are always going to be some pilots who are willing, or forced into taking work with companies that others avoid.
But as the pilot shortage increases, the lower-paying companies have already started hiking their salaries, to try to retain/attract pilots.
The nrpm's have painted themselves into what is going to become an upward wage spiral corner, because of their (to quote B.Mac) "shabby treatment of pilots".
Does SQ (or any other airline) really believe that other airlines are NOT going to dangle bigger carrots to attract pilots, when the alternative is to park aircraft and cancel flights, because they are UNABLE to crew them?
Pilots who feel they "belong" to a company don't (in the main) worry about checking the "jobs available" columns.
Those who believe they are unwanted or "abused" will sell their experience to the highest bidder!
And, as 411A notes, this time is "not all that far in the future." - and from comments here, it would seem that an elite few within SIA are expediting the process.