This gets even more effective once you layer in content-based ranking adjustments -- where defined types of content or viewpoints get automatically downranked.

This gets even more effective once you layer in content-based ranking adjustments -- where defined types of content or viewpoints get automatically downranked. You downrank the content directly, and then the rest of the web is highly penalized from even linking to the "disapproved" content, and so that content effectively disappears from the internet, except in tiny dark corners that aren't found via search.