We have simplified and improved the "Add Comment" feature.
How it used to work is that you click Add Comment, then a new page opens with your cursor in the comment "Subject" field. Since *no one* used the Subject, you would then have to tab or click in the "Comment" box. You typed your comment, and clicked save, then you saw a message "Comment Added Successfully", and you would have to click "Back to Photo" to go back to viewing images. So, click, type, click, click - lots of extra clicks, really.
Now, when you click "Add Comment" your cursor will already be in the comment box - just start typing. When you're finished, click "Save" and you will be returned automatically to the Photo.
This makes it quicker to add comments, especially if you are adding comments to several layouts in a row. We all love comments, so this should help a lot.