I've often thought about the fact that I don't typically read other comments on a post that I comment on. I will read the post and if you comment back I read that, but for the most part I don't go and read other people's comments. I think some of that has to do with the personal nature of a lot of comments. Although it is public, it's still a discussion between the reader and you. How dare I interject into that... That's just my thinking anyway.