Not the original commentor, but there are some valid cases for NoSQL: some people use it for storing massive amounts of web crawling data. But the thing here is

Not the original commentor, but there are some valid cases for NoSQL: some people use it for storing massive amounts of web crawling data. But the thing here is that it's throw-away'ish, and in that case it's often not worth it to add structure (even though there pretty much is structure in everythig you look at long enough). But I do think having any data consisting of, say, items, orders, users, payment in MongoDB is very much a bad idea. Been there.