[fennecfoxen]

You have a point.

But we can meaningfully compare and contrast newer database technologies as well. I think it's pretty clear that Mongo is the MySQL of NoSQL, and I do mean that in the most pejorative way imaginable. Architecture decisions like "let the kernel do all the swapping" decision, a casual approach to durability, the very mindset that leads to inclusion of SSL without certificate validation... ick.

They'll gradually polish their stuff up so that it's quasi-usable and maybe make lots of money, and good for their pocketbooks, but there are plenty of alternative data stores out there which have characteristics which render them more suitable for storing data for most if not all projects.