I'm one of those people who has approached content creation strictly "as a service to your users, not as an exploit of your users." All of my blog posts are very carefully researched, in-depth guides, sometimes literally taking over 100 hours of research and writing for a single post.

I made very little money for years and had just about given up until Panda 4.1 and Penguin 3.0. Since then, when I write well, Google is sending traffic my way, and my traffic and income have been steadily increasing by 20%-30%/month. I now have the incentive to keep adding more high quality content to my blog.

Prior to these Panda/Penguin updates (Sep/Oct 2014), I can totally understand why so many attempted to do what the author did. It made more money. Even if Google algorithm changes or Affiliate changes shut you down, jumping to the next thing seemed to work.

Hopefully Google is ahead of the curve once and for all, providing greater incentive to create great content than game the system.