I don't like how you're blaming the author of the article here. My experience is that people, be it from the business or from the Product team or Sales or where

I don't like how you're blaming the author of the article here. My experience is that people, be it from the business or from the Product team or Sales or wherever, are happy to ignore documentation and come directly to the person they see as the knower. You can document all you like, they will still come to you and you are the bad guy if you don't answer them and point them to the wiki. Do some people exist who don't share their knowledge? Definitely. In fact they are rewarded in many cases because they get whatever they want (usually outside of a higher salary) However, author wouldn't be writing an article like this if he was happy in that position.