Correct. (Of course it's possible that someone downvoted those comments and then removed the downvotes later.)
The way LW displays votes is a bit strange. From the points total and the %positive, you can deduce the numbers of up and down votes in all cases except for "0 points, 50% positive", from which you can tell only that there were some positive number of upvotes and the same number of downvotes. (Well ... if the numbers are really large then the rounding-to-integer of the percentages gets in the way a little.)
I think that given (1) the usually-small number of total votes and (2) the generally high level of numeracy of the LW readership, the only disadvantage to changing from "1 point, 67% positive" to "+2 -1" is that it would require someone actually to make the change, and there are very few Round Tuits[1] available for that task.
[1] "Oh yes, that's a good idea. I'll do it when I get a round tuit." I have seen shops selling Round Tuits. Unfortunately they don't actually generate increased motivation or spare time.
Or perhaps to make it easy to read: "1 point" with "+2 -1" in the tooltip.
Some time back, I wrote that I was unwilling to continue with investigations into mass downvoting, and asked people for suggestions on how to deal with them from now on. The top-voted proposal in that thread suggested making Viliam_Bur into a moderator, and Viliam gracefully accepted the nomination. So I have given him moderator privileges and also put him in contact with jackk, who provided me with the information necessary to deal with the previous cases. Future requests about mass downvote investigations should be directed to Viliam.
Thanks a lot for agreeing to take up this responsibility, Viliam! It's not an easy one, but I'm very grateful that you're willing to do it. Please post a comment here so that we can reward you with some extra upvotes. :)