This article has little to do with the specific failings of MongoDB at all. The author takes offense with document databases and denormalization. I disagree wit

This article has little to do with the specific failings of MongoDB at all. The author takes offense with document databases and denormalization. I disagree with the blanket statement. Denormalization. It's not always the answer, but sometimes making reads easy and writes more difficult isn't bad for the problem set. The funny thing is a social network at scale isbt going to be able to use a traditional SQL database without sharding it and killing joins. It will be a documebt DB with limited SQL features. As for Mongo, it is sold as the answer to everything just like any other product. It actually fits some problems sets. I actually had great success with it, at scale, in an Amazon division. It ain't the answer for a lot of problem sets though. I give this blog post two of five for bringing up a mildly interesting topic HN already beat to the ground with misguided conclusions.