Perhaps we can put this debate to bed once and for all.
The purser who was demoted had some history. In addition, the rest he gave was extended by some margin over the norm. The final nail in the coffin was the assessment he wrote on one of the crew (Korean). She was not happy that he'd marked her down for not following SOP's. Not a wise thing to do when you don't do the same. She reported him for it.
There has been another incident previous to this where another crew member refused extended rest and then reported it. In fact, there have been several other cases within the last 5 years or so where people have actually been fired but in all cases, there has either been history with the individuals or that the rest given has been in the extreme and has been reported/photographed by passengers or service onboard has suffered.
Personally, if crew have a problem, then bloody well speak up there and then. Do not dob your colleagues in it unless there are serious safety issues that are being ignored. Some of our cabin crew managers are just as spineless for not dealing with it in a mature and practical manner. They are just as much to blame as the feckless reporters.
Rant over!
Harry