I do think that people make too much of karma and comments scores. But I don't understand why pg thinks this particular aspect is an improvement.
exactly
After all, the biggest function by far of the votes is to influence the sort order, so the good stuff gets read by the people that skim. A vote is like a little bit of editorial power, you get to have a say in what goes 'above the fold'.
I can see ways hidden scores may work for or against extreme totals. On the one hand, without the satisfaction of seeing a vote take immediate effect, overall voting may go down. But on the other, without the indication that a comment is already 'far enough' in a desired direction, charged comments may rack up unprecedented positive or negative values. I hope you can share info about which effect predominates.
I will miss the chance to quickly 'rescue' slightly-downvoted comments I don't particularly like or agree with, but feel have been unfairly squelched into nether-ratings by hair-trigger down-voters.
I don't want to be the asshat to drop a comment below 1, just because there's a better comment that's currently below it (but probably with more karma). At least from my usage, you'll see a net gain in karma inflation.