QUOTE( JameskWalter @ Jan 30 2014, 07:36 AM)
Google doesn't know that the links are natural or paid. The reason is that the paid links are mainly created with automation and without purity. And natural links are always created with pure content and proper use of keywords. So Google just find out the difference between them and remove the paid links as Google doesn't like impure or poor links.
Yes, you are correct. I agree with you. But i want to tell you that these all doing by Google's new algorithm hummingbird. Which checks and crawls all website's details and links.