Really? What part of the article was more useful than the man page?

  diff the-article the-man-page | wc -w
  => 75

Well then, I guess it must be the 75 words.

The summary of those 75 words is "I want to watch for file changes but am too lazy to write a Perl script. Look at this. `man watch`"

I guess we just disagree about what part of the post is useful.