Emotions for HN от Swapnil

Emotions for HN is a Firefox plugin which adds a UI control to comments section of hackernews (http://news.ycombinator.com) showing 5 emotions (listed below). Anybody can vote on these emotions and each comment will show how much emotions it accumulated. Supported emotions:

Empathetic
Encouraging
Ad Hominem
Flame war
Discouraging

The emotion having the highest vote on certain comment labeled as an emotion of that comment. So e.g. certain comment has a large number of vote for 'Empathetic' then the comment is labeled as empathetic. You can also enable emotion-highlighting where you can see all the comments which are labeled with given emotion.

Refer for more details: https://hn-emotions.appspot.com/