I'd like to suggest to implement a feature that when looking at completed games one can see eatch players rating at the time the game was completed.
My point is that when you look at game that was completed a year, or more, ago and both players ratings have changed (, maybe one of the players has gotten a higher rating, and let's say the other has lost the last 50 consecutive games due to timeouts wins making his rating drop significantly). Now comparing their current rating to the way they played, and to the result of the completed game doesn't make much sense. At least not to me.
Instead being able to see what rating they had at that time would be more interesting and I think it would be more logical to include this information, don't you agree?
As far as I'm concerned one could still display the current rating next to old rating.