It is surprising to me how little people seem to know about native/ content amplification ads. Here is a brief primer: First, as far as quality goes, there are different networks with different quality policies. In general, Outbrain is very strict, Taboola is also, but less so, and RevContent, Content.ad, and the 50 or so other native networks (including mantis targeting marijuana publishers and jewish content networ…
In our experience the vast majority of the money into the system is from arbitrageurs. We've been fighting these guys for a long time. Here's a better solution, now in private beta: http://pubsub.publir.com/
Also,Your solution doesnt address the problem at the moment I am experiencing the pain. You need to win on intellectual grounds without the emotional drivers. Youll probably get some traction and users but never mainstream scale. its too disconnected from the pain point.
My idea/opinion, "charge a donation for sharing content." When someone feels compelled to share, they are seeking emotional validation, thats worth paying for.