Some of the reasons:
No more Bonuses
No more MVC
Unstable housing allowances
Unstable and inhuman roster
Position on long haul flights on Economy class seated by the toilet
; and Ground transport in a Van right after these long flights, (sometimes more than 4 hours ride) (Ground transport is not considered duty time!!!)
Minimum rest in almost all stations
Inexistence of staff travel (ID 75 is a joke)
Being an instructor without being paid for it (young FO’s with as low as 500 hrs seated on the right seat of a Jumbo jet)
The event with the SAS guys, regrettable
Cost of living and taxes in Singapore are too high
Someone can continue from here,,,