Not everything written in this world has to be given a positive light for it to be true and accurate. Take some time and learn to program then take a closer look at the code. Then read the article again a tell us if there is anything that is not on the money.

The items talked about here are listed to be informative not negative. There are plenty of people ansswering the question "Can I do this with Drupal" with "Yes you can". But there are very few if not none that tell developers and user what cannot be done using Drupal. The limitations of the software is never discussed.