Originally Posted by
thomas164
I was trying to make a new booking of PVG-HKG today. I realised there's a new row on the ticket price that charges CNY800 for standby even on Flex ticket? I wonder if it's just that I never noticed, a new policy or a IT glitch? I

Definitely a glitch (no surprise @CX IT)
you can see that the next row says standby available for earlier flights
It has always been available, I'm sure many frequent flyers here purchase these tickets for the flexibility