Some people's rating tend to fluctuate so much that you would be hard pressed to get an accurate picture of their strength no matter when you looked at their graph. If you beat a player rated 1100, then review your games a month later and see them rated at 1800, how strong of a player did you defeat? Are they cultivating their wins to get a bloated rating that spikes, then drops again? Are they really a strong player that dropped alot of points because of timeouts? If you look at DustinRogers' graph on some occasions you might get the impression that he is a real fish...You'd be in for a very rude awakening! Of course, I'm sure that you already know all of this, so my real point is that I'm not sure what your point is. Not trying to be sarcastic, I just really don't get it.