You could also do sentiment analysis on your dataset and link it to likes. Basically the more signals you have the more you can narrow down your classifications

You could also do sentiment analysis on your dataset and link it to likes. Basically the more signals you have the more you can narrow down your classifications or correlations. Btw, your inference is correct. Course, one could argue that it is informed by 25-35 males being one of the most common demographics on HN.