This blogpost from 2014 has been an almost perfect predictor of the last few years of the Meta disaster. It misses some stuff, but it's not really wrong anywhere beyond some minor details. It calls out Carmack as being the canary that will ultimately predict Oculus/Meta's future.
That was a good read. But I'm not sure about Carmack being the canary.
The idea was then that if he left quickly over ethical matters, it would be a sign of something was really wrong. But Carmack didn't leave quickly. It's been almost 9 years. And none of the reasons he cites have to do with openness, transparency, or abuse of user data.
https://assayviaessay.blogspot.com/2014/03/virtual-spaces-re...