It seems that if you look at the column on the right of the page, you can see upvotes and downvotes separately for recent posts. The same [n, m] format is displayed for recent comments, but it doesn't seem to actually sync with the score displaying on the comment. This feature only seems available on the sidebar: looking at the actual comment or post doesn't give you this information.
Thanks, whoever did this!
This is a great new feature. Thanks!
I will note, though, that the implementation of this feature seems to have artificially inflated my karma score. It has gone up by about 200 points over the last couple of days, and I don't see any sudden increase in actual upvotes to account for this. Also, my karma over the last 30 days doesn't display a commensurate increase.
Here's my hypothesis about what happened: I had a post that I moved from Discussion to Main after it had already accrued a number of upvotes. The upvotes it got while in Discussion only gave me 1 karma point each, but I suspect something about this new feature has retroactively scored those upvotes as if they were for an article in Main, so I got an additional 9 points for each of them.
I'm not complaining, of course. Just a heads up about what seems like an unintentional side effect.
Aha. That explains why Eliezer now has ~4200 more "karma in the past 30 days" than he did.
Edit: Never mind. The effect is now gone, which means it was actually this change.