A Suggestion for Comment Box

I have a recommendation for JetPunk comment section I had in my mind for a while. There is a button at the bottom of every page to jump to the top of page. I think there is also a need of a button somewhere next to "Show Comments" button which would lead us to "Add Comment" button. It would not only aid in reading most recent comments but also user can skip scrolling all way down to write a comment. Jumping you to most recent comments on clicking "Show Comments" button would be a bit messy but a button "Jump to Most Recent Comment" button would be a good addition.

It would be especially helpful in groups, blogs or quizzes with alot of comments.

What you think about it?