Different data store types are used to solve different problems. An RDF store is designed to help solve the problem of ontological relationships. I wouldn't use an RDF store if I wanted to store information about who has the current high score on my video game or who has signed up to my site for a username and password.
Unfortunately some developers think that once you've chosen one particular storage technology (RDF, relational DB, document storage) that's the bucket you hae to put everything into in order to do anything in your application. I suspect that was the mental model of the other devs in the story above.
Unfortunately some developers think that once you've chosen one particular storage technology (RDF, relational DB, document storage) that's the bucket you hae to put everything into in order to do anything in your application. I suspect that was the mental model of the other devs in the story above.