Thanks nod_ with the detailed feedback.
I agree with all the comments.
Just as a a beginner , when one is not use to coding in Drupal then too many concepts in one post (like using the T function etc) cause too much to digest. Though I completely agree that a final production code written for Drupal should have all the best practices mentioned by you.
But as a beginner if some one reads a post too many new concepts make one even not understand the core concept the the article is trying to highlight.
Having you in the review team will be awesome.
Looking forward to that and improve my Drupal skills 