Has Chess.Com Changed the Rating System Recently?

I'm asking this because I have been playing 1500 and 1600 players a lot and they give me lots of trouble, and often beat me up.  The last few days I started playing 1700, 1800 and even  1900 players, and nothing but success.  So, I'm guessing that Chess.Com has changed the rating system to be more like the USCF rating system, which is easier than Chess.Com.  Have they changed the rating system recently?

I don't think so, but I could be wrong. Maybe you just got better and/or have just had probability roll your way? That seems more likely.

Happening exactly the same with me! I used to be a 1700-1750 player, suddenly lots of guys in their 1500s beat me :) Something changed, no doubt.