If the filesystem corrupts data, it has to be fixed at the maintainer's discretion. This is what the users want. Tough luck it makes Linus' life harder! Not to mention that he's allowed btrfs to run unchecked for so long. Kent put it nice, actually, kernel work is not about pleasing egos of top guys; it's about delivering software for users:
> "Work as service to others" is something I think worth thinking about. We're not supposed to be in this for ourselves; I don't write code to stroke my own ego, I do it to be useful. I honestly can't even remember the last time I wrote code purely for enjoyment, or worked on a project because it was what I wanted to work on. My life consists of writing code base on what's needed; to fix a bug, to incorporate a good idea someone else had, to smooth something over to make someone else's life easier down the line. Very rarely does it come from my own vision. My feelings are entirely secondary to the work I do.