Per your comment, I wrote a Chrome extension that creates links to other HN submissions pointing to the same URL. Hovering over the links provides additional de

Per your comment, I wrote a Chrome extension that creates links to other HN submissions pointing to the same URL. Hovering over the links provides additional details. This provides similar functionality as the 'past' link in a submission's subtitle, but shows the duplicates automatically. Here's the extension: https://chrome.google.com/webstore/detail/hacker-news-duplicate-det/ocagpmnfhgbgmbaaimpehpbnnplkmpkd https://chrome.google.com/webstore/detail/hacker-news-duplic... Here's the source code: https://github.com/dstein64/hn-duplicate-detector https://github.com/dstein64/hn-duplicate-detector