All this, yes. And the ongoing use of "shadow documentation" where important details are mentioned halfway through a WWDC presentation but not written down anyw

All this, yes. And the ongoing use of "shadow documentation" where important details are mentioned halfway through a WWDC presentation but not written down anywhere is a hair puller too. Especially when they start taking down videos covering APIs that are still in active use!! (WWDC videos apparently have a 5-year lifespan at the moment. While 5 years is a long time and a lot can change in that period, not everything changes.)