Concise description:
Ratings for opponents will from now on be anonymous.
Specifics/Details:
Instead of players knowing who rated them what, the ratings system will now be anonymous.
How this will benefit the site and/or other comments:
The current ratings system doesn't work because everyone is afraid of ratings revenge, etc. This new ratings system would encourage players to rate others the way they ought to with no risk of retaliation/hard feelings towards the rater. Also friends never give each other bad ratings when they probably should. This system would, I think, lead to a more accurate idea of how your opponent was going to play.
The only downside I can see to this is ratings abuse would be very hard to track but I think it would be a decent trade-off since many argue that the ratings system is useless as it is now anyway.