[brown9-2]

From TFA:

We were a young startup and made a few crucial mistakes. MongoDB was not a mistake. It let us iterate rapidly and scaled reasonably well.

A good solution for X scale might not be so good for 10X scale. But by the same token, a 10X scale solution for a 1X scale problem isn't a good idea either.

[dopamean]

This is what I haven't understood about criticism of MongoDB. Don't some people have projects that dont need to scale to an incredible degree?

[seunosewa]

Then why not use a relational database in order to save time?