Flattr is a donation model, not a subscription model. Donation models are much less lucrative in general than nearly anything else because you can just forget to donate after reading. This is why Exhibit A for the donation revenue model is non-profits.
But you seem to argue against the culture of the web the way it currently is, which, whatever the morality of it (I use blockers with abandon!), includes both pushy, aggressive ads and ad blockers.
