One great thing about Tableau Public is that it gets people talking. Why do certain states have higher rates of foster care placement? Which highways have the most roadkill? But we've also seen discussions about data visualization practices itself. For example: Should pink ever be used as a color to describe women when presenting data?
We think discussions like these are insightful, but also genuinely fun. So we've started a whole forum just to talk about vizzes called Viz Talk. Here's an example of a viz about lacrosse that's generated quite some discussion (modified to fit our blog).
As people have pointed out, it's a great, straight-forward viz that allows readers to get the information they want. Still, there is always room for improvement. Some suggestions included outlining the states, adding more tooltip information and even minor UI tweaks (turning off zoom controls). Viz Talk is a great place for helping each other learn to tell better data stories, and you can add your own thoughts too.