It just scale.
Engineer 1: "Hey, relational databases sucks!!! We should use MongoDB fo sho"
Engineer 2: "Why do you think so?"
Engineer 1: "Hey, relational databases sucks!!! We should use MongoDB fo sho"
Engineer 2: "I see, but from a technical standpoint why do you think we should use a NoSQL database?"
Engineer 1: "Hey, relational databases sucks!!! We should use MongoDB fo sho"
Engineer 2: "I... I don't know what to think! How in the world did you graduate from college?"
Engineer 1: "Hey, relational databases sucks!!! We should use MongoDB fo sho"
Engineer 2: "F@*$#@!!!"