I really like the lack of comment scores. Things are still sorted, so the cream floats to the top, and it made me realize I felt group-impulses based on the score. Now, there is little to no incentive to one-up someone, and I don't consider people refuted based on their score, but rather based on what I think of their comment. That last part has nurtured my curiosity, I find myself exploring thoughts I didn't on the…
In fact, I think the general quality of comments has improved since the comment score mechanism has been removed.
Of course, that's the wonderful aspect of comments - we are all free to disagree.