@ Techwiz911: That's a great question. The Blitz and Rapid ratings mostly don't line up with each other. This is due to the Blitz rating having a greater standard deviation (fluctuation range) than Rapid. Blitz are shorter games with more mistakes, due to the shorter time of the game. Thus, it is a greater probability for a blitz game to not truly reflect your skill level (especially if you're on "tilt"!). Notice the high end of the Blitz range (Nakamura/Carlsen) is hundreds of points higher than the high end of the Rapid Range.
If Chess.com wanted to attempt to make Blitz and Rapid ratings to line up with each other, (which would be difficult at this point), they would need to reduce the number of points lost/gained per game in Blitz compared to Rapid. (right now it's the same). I can't say I know exactly how much it would need to be reduced. It's difficult to say, since within Blitz there is still a significant range of time controls, with and without increments.
On your last point - it is true that this last sharp fluctuation of May 9th is due to some kind of bug in the system (from what I read in a different forum). But it is true that gradual deflation is happening over time, from the data I have examined prior to May 9th.
People at higher levels don’t play rapid nearly as often as blitz, that’s generally why the ratings are lower for rapid. Especially titled players, look at how many rapid verse blitz they played in the last 90 days, tons don’t even play rapid at all.
Or maybe they simply have an alt for playing rapid, and don't tell that to everybody.
I guess that could be an option, but I think the majority of people after a certain level prefer blitz/bullet for the fast dopamine hit and less chance of cheating, along with having a larger pool of higher ratings and titled players in the queue.
@ Techwiz911: That's a great question. The Blitz and Rapid ratings mostly don't line up with each other. This is due to the Blitz rating having a greater standard deviation (fluctuation range) than Rapid. Blitz are shorter games with more mistakes, due to the shorter time of the game. Thus, it is a greater probability for a blitz game to not truly reflect your skill level (especially if you're on "tilt"!). Notice the high end of the Blitz range (Nakamura/Carlsen) is hundreds of points higher than the high end of the Rapid Range.
If Chess.com wanted to attempt to make Blitz and Rapid ratings to line up with each other, (which would be difficult at this point), they would need to reduce the number of points lost/gained per game in Blitz compared to Rapid. (right now it's the same). I can't say I know exactly how much it would need to be reduced. It's difficult to say, since within Blitz there is still a significant range of time controls, with and without increments.
On your last point - it is true that this last sharp fluctuation of May 9th is due to some kind of bug in the system (from what I read in a different forum). But it is true that gradual deflation is happening over time, from the data I have examined prior to May 9th.
People at higher levels don’t play rapid nearly as often as blitz, that’s generally why the ratings are lower for rapid. Especially titled players, look at how many rapid verse blitz they played in the last 90 days, tons don’t even play rapid at all.
Or maybe they simply have an alt for playing rapid, and don't tell that to everybody.