Good point. Makes me think of people who go on mileage runs to accrue airline miles for status. They tend to compare value in cents per mile, and if the run yields a low enough cost per mile, it's worth their time to take a flight just to turn around and come back. It would be interesting to see a similar calculation taking into consideration time, likelihood of getting on the HN front page (or being the top post), and value of getting on the HN front page.