Well, actually I've even found 600-level games on Chess.com to be harder than 900-level games.
Obviously I've improved. But I wonder if the many of the very low ratings on Chess.com are just due to people making terrible blunders in otherwise pretty solid games.
I've also noticed that there isn't a lot of difference. You get horrible blunders from higher rated players and lower rated players will kick your ass. I can drop or rise 200 Elo points in a couple of hours easily.
Obviously I've improved. But I wonder if the many of the very low ratings on Chess.com are just due to people making terrible blunders in otherwise pretty solid games.