Is this what your friends see when they visit the comment section of your main page? Comments shown in lighter colors because they haven't been viewed by you? Think maybe you should take a look after reading the rest of this article?
As I noted in an article I wrote a couple of months ago, the comments (for most of us anyway) made by others on our main page do not show up in the comment tracker anymore. As you look at the comment sections on your friends main pages you probably have seen some of those unviewed comments that have been sitting there for quite some time.
The thing is, your friends may be seeing those same kind of unviewed comments on your main page.
The solution is very simple. You can click the "Comments & Feedback" tab in the "Customize Column" section to check, or just bookmark a copy of this link to check occasionally: http://www.newsvine.com/_tools/authors/usercomments
Click it and take a look, it only takes a second. You may very well be surprised! :)