Sorry for the semi-clickbait-slash-confusing title. It’s a poke at the title of this one:
http://cryto.net/~joepie91/blog/2015/07/19/why-you-should-never-ever-ever-use-mongodb/
This kind of MongoDB-hating continues to swirl around out there, and excepting his “is a nightmare to scale and maintain”, there are a good list of objectively documented issues with Mongo.
It will be really nice when Meteor supports SQL or other DBs, so we no longer have to be tarred with the same brush.