New comment notification or comment count on "Threads" feed?

Think it'd be good for discussions if the "Threads" feed had a notification of new comments on the main submission?

dunno, would that just be annoying for more of you power users? I tend to be a lurker, myself.... get the vibe and get involved when I can or feel the need to. So I haven't got a lot of threads I follow, I just wonder whether there is a solution in how I use the site rather than the code?