I am not doing any machine learning (yet). If the site takes off a bit and generates some data, I expect optimizing the prediction algorithm will become a top p

I am not doing any machine learning (yet). If the site takes off a bit and generates some data, I expect optimizing the prediction algorithm will become a top priority. Accurately predicting human relationships sounds incredibly hard. Currently, it's looking how similar your ratings are to the ratings of others. Similar people will influence your predictions more strongly. The declared goals or intentions are currently not affecting predictions. And I'm doubtful if they should. Any opinion on this?