[dwohnitmok]

Or a variant, give a reader the option to deny paying the media outlet within some time window, but the reader doesn't get any of the money back.

This does mean the payment processor and the outlet have to be independent entities. That, though, nicely opens up another possibility of what to do with that money that is denied: distribute it proportionally to all other articles from all other media outlets. Proportionate to what is also a question, but I suspect proportionate to non-denied payment from the processor makes the most sense.