> ...[database scaling is] definitely is not the main
  > difference between the relational and noSQL models.

The post I was responding to strongly implies that one simply has to decide whether they want to use a relational model or not. I contend that framing the question this way is contributing to the misunderstandings of what the advantages and disadvantages of the popular noSQL databases are, which become very apparent when one thinks of what happens when the data set gets very large. Relational databases don't work nearly as well when you have to split the schema across multiple databases, and you can no longer use the database provided transactions or joins.