It didn't came harsh.

I use no script whatsoever and the complication . For a dev environment, I go like this:

  $ sudo su - postgres
  $ createuser -s nakkiel

And again, no further operation is required until you install a new OS on your machine.

I really think we're missing the point anyway. The complicated things, and Mongo's advantage, only really come later when it's time to create a database and tables and columns and indexes..