We just launched almost exactly what you describe. It is called FairBlocker. An ad blocker with a monthly subscription fee (of your choice), which we then split up among the sites where ads are blocked.
We're looking for feedback from people who get the problem - what do you think? Feel free to email me directly if you want: zack@fairblocker.com
I understand the sentiment, but I do think that replying to people talking about exactly what my company does is an appropriate place to try and discuss what I'm working on. This is the only thread I've brought my product up in and did it because it is a discussion of the same concept.
We're looking for feedback from people who get the problem - what do you think? Feel free to email me directly if you want: zack@fairblocker.com