Check out who replied to your Digg comments, and what they said! You can even track all your replies via an RSS feed that shows the most recent replies to your comments!
I created this tool because I was frustrated with having to continually go back to my user page to determine whether anyone had left a reply to one of my less popular comments.
There is a limitation on the tool. To abide by Digg.com’s “polite” API usage policy, RSS requests that come sooner than every 10 minutes may be denied. Repeated abusers could be rejected.