I agree that 1) was a little flippant, I think I should put in something else.

2) I might be wrong about this but I think that would apply to a lot of the newer sites, especially the ones with a focus on mobile use. Do any of the 'check-in' sites have any use? The action -> reward loop is closer to a game. Eat.ly has a use (diet tracker), but I believe it's quickly becoming a place for foodie porn (which is its main strength regardless). I totally agree that you can't make people think too much (too much like work) but how important defined utility is is a big question for us still.

Thanks for the feedback.