There is one box at the top with links to the duplicates, and one box under the question, starting with "marked as duplicate by ...". Actually I have never seen the links before today - I have totally missed them, so I have just wondered throughout all the years I have been a passive reader, where those duplicates were. I think when I have arrived at a page, I have just scrolled past the "header" (including the title of the question, an ad and the first duplicate box) down to the question text and the first answer, and there in between - the second duplicate box, which I have noticed. But there is no explanation or hint where to find the duplicates, which one have to find further up the page.

Reading and scrolling from the top to the bottom, I think it is illogical to go up again to find the links/duplicates, that the second box mentions. A notice could be written that they are "above", but I think it would just be better if these were combined, to have all information in one place/box.

Or is there any reason that this information should be split into two boxes?