--The honor system, which these ratings apparently rely on, --seems amazingly naive, especially for Google.
Agreed, some have said it's them 'weeding' out the b-hats. This just *feels* like a simple mess. I don't believe it was planned; IMHO it's an indication of changes going on @ the plex right now - simple as that.
This is Facebook related. They can't handle FB having that much power over the net.