The two issues are related:
Retroactive changes and clear boundaries at tiers.
Retroactive changes have a clear purpose. An unknown entity comes along and loses a couple of games. He’s now tier 3, but really, he’s a tier 1 player - he just lost twice to tier 1’s.
Now this player is 0-2 with a 2.00 average. A win against him under MrRoboto and alexgreat’s thinking is not worth much. In my system it’s worth 4 points, but this is a tier 1 player.
After starting out 2-0, he reels off 6 straight wins and is 6-2 and 4.00 average, tier 1.
All 8 players who played him should get credit for playing a tier 1 player. But if there are no retroactive changes, then some players only get credit for beating a tier 3, and some for losing to a tier 2, but all along this is a tier 1 player.
Also, without retroactive changes, then how many points does the first guy to beat him get?
See, with my system, if it turns out that newbie you played was a star, you will later get credit for playing a star.
If he’s a hopeless newbie, that also will be reflected later.
Under the proposals I’m reading, you would just get some average prize for defeating this new player to the league, but there is a very wide disparity in competence levels among new players!
Hobo is a good example.
He started in the league this year. Hobo has a lot of A&A experience, but had a lot to learn about G40. Bold got an easy win off him, but Hobo came back and beat Bold twice and is now solidly a tier 1 player. Bold gets credit for beating a tier 1 and losing twice to a tier 1. Now I agree with you that his first win against Hobo was a relatively easy 6 points. No system is perfect. But there are strong merits to retroactive changes in A&A (please don’t compare to sports - it’s not the same IMO), and OVERALL it seems to average out and work out.
My challenge to you - name a few players who are significantly under-rated or over-rated, who have played at least 10 games.
There are only 2 players I can think of who had significant changes in ranking positions after their first few games.
They are Snakeeyes and Hobo. These 2 players had high A&A IQ all along (I played Snake one of his earliest games, and while I beat him easily, I also recognized that he was very talented and told him he would win a lot of games, at that time), and they started out a bit low because they were early on the learning curve. But it only took a few games, and they were on the rise, and just kept winning. A couple of players played these 2 on their rise up, and now have credit for playing a tier 1, and not a tier 2 or tier 3. You can only play a couple games against a given opponent anyway. The difference in a single game between playing a tier 1 or a tier 2 is only 1 point. Yes, sure you can find situations where the amount of points awarded may not be exactly appropriate, but these things tend to average out. Again, find me a few players who are inaccurately ranked. I don’t know of any.
I don’t think I’ve seen any players ranked highly who dropped precipitously. I have seen few games where a player who was “supposed” to win, actually lost. The system is definitely working. MrRoboto, you need to hang around longer - respectfully, I think you are giving out too much opinion for not enough observation. I predict that your ranking will settle where it should be by the time you complete 5-6 games.