I had an idea to plot comment karma as a function of number of replies, and upvotes. So the axis would be 'discussion' and 'popularity'. A controversial opinion

I had an idea to plot comment karma as a function of number of replies, and upvotes. So the axis would be 'discussion' and 'popularity'. A controversial opinion is probably unpopular but heavily discussed. Likewise, a pithy one-liner is popular but not discussed. Then you can see whether you tend to just parrot public sentiment and spout off-the-cuff remarks, or whether you create interesting conversations.