Hn-collapse is a project mainly written in JavaScript, based on the MIT license.
Safari extension that enables collapsible comment threads on HackerNews
This is a simple Safari userscript-style extension which enables collapsible comment threads on HackerNews. Thanks to Alexander Kirk for the original code:
http://alexander.kirk.at/2010/02/16/collapsible-threads-for-hacker-news/
This 'extension' is released under the MIT license.