That's assuming you're an informed reader, or an informed creator. Honestly, I just pop in and read whenever I have the energy and time. If that's at 3am my time, then so-be-it. If that's a "poor" time for the algorithm I don't care. That's when I'm free.
Someone mentioned before that supposedly the system code pulls from only the most recent 24hrs. I think that's true and not... I think it's weighs 24hrs, past 7 days, and past 30 days or current month.