I like how compact it is:

I like how accesible are the threads

The Evolution Of Hacker News

Users submit links to stories, and stories are ranked according to a voting system, similar to Reddit. The difference between Hacker News and Reddit, however, is the voting system. While you can vote stories up, you cannot vote stories down (but you can flag stories). According to Graham, 100 upvotes will get a story to the top of the front page of the site. You can only downvote a comment if you have enough “karma” on the site, which is another compelling element of Hacker News. The Karma factor is determined by the number of upvotes on a user’s submission and comments minus the number of downvotes.

In terms of the design, Graham says he wanted Hacker News to look like your list of processes in a terminal window. The look and feel of the site was aimed at hackers themselves who are familiar with tabular data.