whats 'rd'?
But anyway, the rating system is the same as fide, isnt it? I think it is pretty accurate. You cant just improve all of a sudden by a huge amount. You cant just say you're too good for this rating when you cant get out of that particular rating if you continuously get beaten by people with the same rating.
I have done some research into it, and I think that chess.com needs to set an rd threshold of about 40 or 50. I know that can lead to more variation where maybe there shouldn't be, but I have a very low rd and I have recently improved a lot, and I feel like my ratings are dragging up behind my skill level. a higher rd threshold would mean ratings could change faster to more accurately follow changes in skill.