When you're writing a self post for reddit, this extension predicts if your post will get at least 5 comments. Click the extension icon once you've typed in the title and text to get the prediction.
Reason for Permissions:
Read and Modify data is to get text from title and text field of submission page.
History is to improve the accuracy of classification via two types of additional data, data about a users knowledge and data about the number of users interested in a particular topic. It records the last 3K items of browsing history and updates every time you make a prediction.