R U A Dick is a single-serving website that performs sentiment analysis on your (or anyone's) Reddit account history. I was deemed "slightly positive." Here is my most positive sentence on Reddit.
And here is my most negative one.
The script can also be run on Subreddits and the creator maintains a leaderboard of the nicest ones. I Took A Picture has the highest total score; other notably positive subs include Cosplay, Penmanship and Tattoos. [via Reddit.]
Every Monday I extract the top comments from the top posts of some of the most popular subreddits through the Reddit API. Each comment gets parsed into sentences and analyzed using the NLTK Sentiment Analyzer Vader Module which scores them based on how positive, negative, and neutral they are. Subreddits are ranked from most positive to least positive in the table below.