The heat map shows the percentage of unique posters needed to account for specified percentages of the subreddit's posts in the last days. Lower percentages indicate that posting activity is concentrated among a smaller number of users, while higher percentages indicate broader participation from unique accounts. Use Connect Rankings to trace a ranking across columns; because rankings are calculated separately for each column, a line may connect different subreddits. The 100% column is shown in gray because every included poster is required to account for all posts. To better understand this chart, ask yourself the question, “What percentage of users in r/subreddit is needed to make up 30% (or 20%, 50%, etc.) of all posts in the last days?” The percentages in the heat map squares are the answer to that question.

Finally, the figure below shows the subreddits sorted by the percentage of contributions made by the top X users.

The following users are among the smallest groups of users whose combined posts account for at least 10% or 25% of posts in more than one subreddit during the last days.