[allenbrunson]

for me, the comment i'm replying to shows a red dot, just to the right of the up/down arrows. i've seen a couple of other comments with such a dot. anybody know what it means?

[chriskelley]

It means the comment has reached the "good" threshold and has 5+ upvotes. See: http://news.ycombinator.com/item?id=846123

[superkarn]

pg's experiement http://news.ycombinator.com/item?id=844979