> “auto-save”, which claims to wipe out the abomination of volatile-by-default documents

I have to say, something like this wouldn't be very useful to me. I want more control over how my mass storage is used: I frequently run systems with mostly-full partitions, and something like that sounds like a very quick way to push my system over the edge into constant failure mode.

Before you say my way is objectively wrong, ask yourself whether you really want to dictate hard rules about workflow to someone you don't even know.