That doesn't disprove anything for me. It just says POSIX DOS lowest common denominator network effects are a hell of a drug.

Whenever we're talking about interfaces, coordination success or failure is the name of the game.

What problem do you think a DB-as-filesystem solves? The only obvious one that makes any sense at all is cross-file transactions.

The filesystem is a bad database

Directories are a shitty underpowered way to organize data?

No good transactions

Conflation of different needs such as atomic replace vs log-structured

I would like to use a better database instead.

Would you pay 50x performance decrease?

No, and I would also not need to.