I thought the free market determined what survived? Adding this pressure - has to conform to a blog writers vision - just adds another hurdle to success. Was something about the free market broken? Will a half-dozen annoyed blog-readers make any difference? What's the goal here.
My point and goal is for us, the workers of the web to recognize that and steer away from that irresponsibility, if possible. We don't need millions for another photo app, reading app or social network. Let's build something useful.
Photo apps and social networks are possibly the single most useful invention of the last decade. Variations may bore you or seem silly, but there is probably room in the market for some tweaks on these themes. If they make money, then it was worth it.
If you have some future-radar that can predict which will fail, perhaps you can convince some VC or Angel firm to employ you. Otherwise they'll have to make their best guess and plonk their money down where they think best.