This is a Hacker News extension that lets you save time on HN by marking all the news items that you already scanned as read.

So, what is this for?

It's a simple way to keep up with all the news you care about without having to go through the hassle of browsing through the site and checking for new items.

Why use it?

You can use it to save time on HN, and it's easy to use.

How does it work?

First, you will need to install the extension. You can do that by downloading it from the Chrome store.

After you have done that, you will be able to use it by just opening a HN page. You will see a "Mark all items as read" button on the top right of the screen.