The leaderboard displays the users with the highest points total.
Accessing the leaderboard
You can get to the leaderboard page by clicking on your points total in the user menu (accessed by clicking on your username in the black navigation bar at the top of the page, see figure 1).
figure 1: user menu
The leaderboard
The leaderboard (figure 2) shows a list of usernames, together with their rank and points total. Click on a user to see their public profile.
figure 2: leaderboard
Following
Click on the 'Following' (figure 3) link to see a list of all the users you follow with their points total compared to yours. You can follow someone from their public profile.