Somewhat broken lately.

Allows selecting text in comments (to get a definition, for example). Visible actionable URLs of the original page and its HN post. Well-done convenient way to collapse a comment with its children. Very usable. All the kudos.

Used to allow to easily open in Safari original pages and HN posts, including comments (to reply or keep tabs on, for example), but this is broken for a while now. No upvoting or downvoting functionality. Swiping left to navigate back and swiping up to scroll glitch frequently.

goblin89 about Hacker News (YC)