I recently added a view counter, now it's possible to see some interesting statistics on the popularity of articles over time!
Editor's note: this post has been updated to represent the current implementation of view counters.
Views are represented by the size of the dots at the top of each post and the page - the post and the page representing themselves - time is represented by pixels to the left; one day in the past is one pixel left.
There was a lot of uncertainty when implementing this system; I didn't know if it looked nice or not and the general reception I've seen from people is that they don't understand why it's there or what it means. Hopefully I can improve it with time and clear up any confusion with blog posts like this.