I frequently find myself confronted by paywalls and demands that I turn off my ad blocker. I can usually find a way around it, but things would be so much simpler if I could just click a button to pay the site a fraction of a penny.
From what I remember, they're a closed platform. One must use their apps to get access to full article content. That's a nice solution for their partners, but not for the broader web (85%+ of the websites you stumble across that are not TIME, NYT, Economist, etc).
Blendle is a nice experiment, but I wouldn't consider it a solution to the problem being discussed here.