I'm sure that this has been posted before (although I can't find it anywhere), but it does seem to me to be useful:
Could we have a scroll bar at the bottom of the profile graph so that we can view the entire peaks and troughs of every player, rather than only the last 300 games. It would be so useful when accepting clan challenges and games, where you can see the players entire game history and performance before choosing to accept the game.
Especially useful when pitted against a regular timeout junkie when their last 300 games could quite easily be a slippery slope downhill followed by a short rise as they return - you could see their actual/previous rating level before they went away...
I raised this matter awhile ago (see Thread 38372) but I am sure that I wasn't the first to suggest this idea.