[mbesto]

1) It's TechCrunch, so when you say "people", your talking about tech journalists.

2) Minutes per day is highly correlative to the amount of inventory of ads that you can display to users. More time spent on platform = more money you can potentially extract. Given that time is limited, there is only a finite amount available to competing platforms, so it is actually an interesting metric to track (it combines both opportunity of TAM and individual revenue opportunity).

3) There's no misalignment when you don't pay for something you use. This should obvious to you or anyone else that uses free online services by now.

[SomeStupidPoint]

I'm not sure what you mean by point 3 -- it sounds like the reason for that misalignment, not the absence of one.