No curtains were drawn for disembarkation between J and Y on my flight to BKK earlier this evening. The IFS said that they'd been leaving them open for a couple of months now.
Slightly OT, my last three SQ flights out of SIN this month haven't had any priority boarding enforced as well. Sure, the pre-boarding announcement was made, but before the actual boarding announcements the ground staff have opened the glass doors to the aerobridges and just waved everyone through before walking off.
