There were white, there were black, and now "other" optimizers.

google.com/support
After reading this all webmasters realized that the optimization market will change.
My prediction is that “other” (or gray) optimizers will appear.
There used to be whites who promoted resources, made quality content, got natural links and so on. There were blacks who cheated on PR and did all sorts of other tricky things. But now Google has decided to punish those sites that buy links. What can this lead to? I have a website and I want to take the first position in Google’s edition. I refer to the “other” optimizer and what does it do? And he begins to buy links not to me, but to my competitors and systematically knocks on them, thereby knocking them out of the issue. If this works, as Google promises us, then the most expensive links will be those that are guaranteed to knock the site out of the issue. At the same time, the owners of sites which will knock out the issue will not be able to influence this process in any way, despite the fact that they have both good service and content and they don’t buy or sell links at all.