whether the moneyness of the zaps really matters. That is, does it matter that zaps are real money? Or would users be responsive to these micro-incentives even if they were just points on a scoreboard? (i.e. Reddit reputation, etc.) It's plausible that they moneyness doesn't matter, and that people treat SN as a game to earn points. But it's also plausible (and more likely) that the moneyness does matter. This may be hard to test