The Analytics (or stats) dashboard at WordPress.com continues to disappoint, and is a major reason for people to move out of WordPress.com hosting (since they need better analytics like that by Google Analytics which cant be enabled on the default mode)
Its not really beautiful unlike the rest of WordPress Universe!
It can be made better if people try harder! Analytics matters
Here are some points
1) Bar charts and Histograms are not really the best way to visualize trends across time
4) I cant even export my traffic stats (and forget an api !) so I am stuck with the bad data viz here