Just had an idea: what if you changed the "happy" "because" to "x made me happy by". Then people could thank each other that way, instant virality. Although the

Just had an idea: what if you changed the "happy" "because" to "x made me happy by". Then people could thank each other that way, instant virality. Although they could still just do the same on Twitter or Facebook. But I think there might be some way to redeem your site, by giving a crazy reason for doing mood checkins.