I always blame myself when I lose, but why is it at 1900-2100 rapid people either play about 80% or 95% and never anywhere else. Seems a bit weird.
The vast majority of accuracies are going to be between 70-90% so at higher rating levels what you're seeing is going to be the norm
https://support.chess.com/en/articles/8708970-how-is-accuracy-in-analysis-determined
My experience with the rating system...despite daily study, professional lessons and training almost every single day for a solid year...over the last 3 months I've managed to lose nearly 300 elo in blitz. My blitz is now BELOW my bullet. Not some sort of single tilt session. A steady, consistent decline. And my opinion is there are a lot more cheaters than claimed by chess.com and chess.com staff...but its probably also equally true that despite all my effort to get better, I'm just a l0zer. I hate myself deeply for not being able to succeed...rather, regress, despite all my effort. Maybe I'm just having a bad 6+ months consistently. Maybe I'm that pathetic. I'm blundering more than I used to. Whatever the case, I understand your frustration OP. We want to feel like we are improving. And when it feels out of our control and that we aren't and it feels *wrong*, we try to grasp at reasons to why
Meanwhile me not studying except for watching YouTube and analyzing games ....
Beside the mere fact, outlined already by others, that the rating do reflect results, not level (etc), let me tell you this:
If a newcomer who's level is, let's say about 400, sign in to chess.com, it's probalby someone who's not yet hardened, to chess, and will keep offering free material to their opponents, and, since their opponents are made of the same wood, everybody will be schizo Santa Claus of chess at every game played.
Which makes the outcome rather random, in the art of flipping a coin.
So, I just can't figure out what sort of super disabled bot being even more shizo Santa Claus than them, could be added to the site, so the rate of win climbs from 50% to what 55 or 60%.
But hey, maybe it's just me lacking imagination.
I always blame myself when I lose, but why is it at 1900-2100 rapid people either play about 80% or 95% and never anywhere else. Seems a bit weird.