In my opinion it is fake. Practically it is not possible that in five days , out of 23 co-workers not a single person had touched him for any query. And secondly if he is a proofreader then after he finalises any article only then final print on paper will be done. That means during these 5 days no paper has been printed out.
IN MY VIEW THIS IS TOTALLY A FAKE AND MIS-GUIDING ARTICLE.