An inspirational reply of koverstreet https://lwn.net/Articles/1028572/ He is focused on solving all bug reports, and in iterating bcachefs in the faster way possible. It is a sort of implicit contract with its users base: "you are using bcachefs in production/real-world despite it is experimental, and I will support you restoring files and improving code".

So, I can understand why he doesn't like waiting too much before releasing improvements. The Linux kenernel release cycle can transform weeks in months if some bug-fixes requires new features or refactorings, like in case of a new file system. I'm sorry that him and Linux maintainers didn't find a good approach.

BTW, I used bcachefs for 1-2 years with 3 HDD and 1 SSD in cache. It supported this usage scenario better than ZFS for a desktop/workstation like mine setting.