Anonymous micro payments would be very welcomed though .
I do not think that we should give media more power to manipulate people individually (block content or speech, show differently biased content for different individuals etc).
Disclaimer: I do not use ad-blocking but I have noticed that ads have become more and more intrusive and aggressive and Internet is becoming more and more like TV where you could not read or watch something without constant interruption (the main purpose why people actually choose Internet over TV). This means that I am more and more willing to use some ad-blocking solution or I just do not visit places with intrusive advertising tactics.
So possibly the real solution is less and less aggressive ads and especially no ads after payment (no there is no excuse for that beside publisher greed).
With blogs and citizen journalism and everything else there are now millions of sources of "content", and content by itself has become almost value-less. I think good content is getting more and more valuable by contrast, although its market is probably shrinking.
To the ad-hating, legitimate fans of the publication, there's probably minor difference. That's the group this plan is targeting.