Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
Fencer: One reason to see the rating at the time of the game is to better understand why a player has a certain BKR. I saw one player with a rating of over 2000 after four games but he had not beaten anyone over 1500 and had lost one game to a 1600 or so player. In addition, it would better help players gauge the difficulty of a player. Personally, I would like to see- if it were possible- the rating at the time the game started or ended, and the current rating.