I suppose that this is referring to comment #13 but for future reference how would I know which comment it is?
When you open the link, it is referring to the 1st comment.
When you want to make a link: click on the day/date/time of the post you want to reference. It will come to the top of the page. copy the url of this new page, and you've got it.
edit: or on DDF click on the title of the thread that appears above the comment you want to reference.