That's right, Google scares you that all purchased links are black. So simple. You start coming up with methods that mess up algorithms and prevent them from working. You can't do it any other way, and it's good that you believe that. Still in your innate mentality to follow the laws, there is a lot of useful information. This protects you from yourself. How different we are... We live differently. We don't follow the laws. We understand where black and white are thoroughly and only then take action. And you don't need to. You just follow what you are told by the letter of the law.