Because there are a raft of bad actors out there with junk sites. Removing them utterly from your personal existence can help make search much more useful. Exam

Because there are a raft of bad actors out there with junk sites. Removing them utterly from your personal existence can help make search much more useful. Examples: - Yahoo! Answers - Ezine Articles - Those Efreedom assholes - Experts Exchange (your experience aside, this place is crap for most everyone else) - All the junk sites around appliance manuals - All the other content farms