Databases are just one kind of stateful server application though, and yes I would agree with you for that usecase relying on it's underlying durability is a go

Databases are just one kind of stateful server application though, and yes I would agree with you for that usecase relying on it's underlying durability is a good thing, because it's built with that in mind. Instead I would like to point out the ubiquity of things like nodejs, which make it all to easy for under-experienced developers to shoot themselves in the foot w/ a chaingun with respect to data design and management. It's not really the internal state of the nodejs process itself, it's the external state that it is inevitably being manipulated in the node process.