Maybe consider Flattr? From what I can tell it does basically the same thing: https://flattr.com/contributors
(The implementations might differ in other important things, e.g. privacy or fee structure, but the basic user attention model seems similar enough to me)
Flattr 2.0 works more like Brave does; the user pays a monthly subscription, and Flattr just automatically distributes those funds to creators based on what sites the user views most often that month.