If you are referring to why bcachefs was removed from the Linux kernel, here's a discussion on bcachefs being removed from the Linux kernel.
https://news.ycombinator.com/item?id=44868868
They already know what was discussed.
(Good? Bad? Indifferent? I don't know and I don't have a dog in this race. I'm just here connecting the dots.)
Yes, that's why those remarks on how it's a mystery how bcachefs was pulled from the kernel are perplexing. To me they sound like gaslighting.
If you are referring to why bcachefs was removed from the Linux kernel, here's a discussion on bcachefs being removed from the Linux kernel.
https://news.ycombinator.com/item?id=44868868