i think in the long run it would be nice to see an algorithm that allows for tailored recommendations and even a tailored front page - ideally an algorithm that highlights new and undiscovered series rather than burying them
it would also be nice to be able to gather more demographic data in the way you can with instagram, which gives you stats on age, gender, traffic times, and location. bolded would especially be good; if you could see when your subscribers are most active on tapas, you could tailor your update times to that.
but i realise both of these things call for a great deal more coding and ~stuff~ that i cant really expect from tapas at this point in time; facebook and google have waaay more resources to do this stuff