At the beginning I like that the comment bar shows every comment on a page as an individual element, which I find to be very useful for long, distinctive comments. However it gets less handy when it comes to minor comments, such as highlighting important words on a page. Each word highlighted, or to say, each mark you’ve made on that page will be shown as an individual comment under the comment section of the page, making the comment list unnecessarily long. I think it would be nice to be able to group or merge some comments together.