Google is now offering personal search results.
Trust me it’s not as bad as it sounds. This could actually be very helpful.
As we all are looking for different things, so Google should customize our search result to reflect that.
While some site owners may think that this will void their rank, it could and it could not depending on the person.
This very well could remove most of the quick google views because they are searching for 1 thing but got another.
Google explains it all in the video below.

Awesome idea. As long as the opt out is there, which it is, there really is no negative to it.
Yes, hopefully this won’t help blackhat SEO.