Hacker News: Show Parent Comment is a free Chrome add-on developed by Dan Mazzini (danmaz74). It falls under the category of Browsers and belongs to the subcategory of Add-ons & Tools. This extension aims to improve the usability of threaded comments on Hacker News by making it easier to identify which parent comment a reply is addressing.

Threaded comments can sometimes be difficult to follow, especially in long and complex discussions. This add-on addresses this issue by adding a "show parent" menu item to comments that are not directly below their parent. By hovering your mouse over this item, the comment's parent will be displayed right above it.

With Hacker News: Show Parent Comment, users can now navigate through threaded discussions with greater ease and clarity. This handy extension enhances the overall user experience on Hacker News.