But the ratio idea doesn't work. If you have a 1200 with an average opponent of 1200 and a 1600 with an average opponent of 1600, your ratio idea will say they are equal. How does that make any sense?
And yes, you can gain points against people 300-400 points below you. And at that point you have a 1 in 10 chance of losing, and you will eventually lose the points you gained.
as Glicko ... er, yeah.
Anyway ...
; Artistic liberties taken; author reserves all rights to change his identity nik to "I_HATE_GLICKO~!" for now and perpetuity
A better predictor of a players strength would be the ratio of his rating to the average rating of his opponents. I see a lot of people who build their ratings by piling up wins on beginners so the allmighty rating develop is only a shell of the ability you're "supposed" to have at their height.
This doesn't work if the glicko system is used correctly. The more you do this, the less you earn, until you are earning only fractional points. And if you lose to any of those low rated players, you can lose a significant chunk of points. The risk/rewards eventually balance out and your stuck, unless you start playing tougher opponents.
It only really works if you provide a minimum one point per win, which I think is only done for the live chess here. Hopefully that will go away when they update to the new version of live chess.