This morning when I opened one of those "Someone liked your problem" emails and I viewed the problem, I saw something that said "Your rating: 1754 near the title of the problem (see attached image). It was a combinatorics problem and my combinatorics level was hanging on the border of Level 3/4 so I think it was pretty accurate. Are ratings back?
Edit: Confirmed. Ratings are back. To view your rating, go to any of your problems, view solution and your rating will appear below the problem's level.