Donation buttons on websites are no where near as prolific as they used to be 15 years ago (Paypal donate buttons). I can't help but feel this is just because

Donation buttons on websites are no where near as prolific as they used to be 15 years ago (Paypal donate buttons). I can't help but feel this is just because people don't want to donate - they'd rather keep their money. This is not a friction problem. This feels like Changetip v2 which is in my opinion not a viable business model. Their target market is people who want to donate widely and not specifically. This is a user group I don't think exists, the ones who want to donate are a subset of the websites most dedicated users. In my opinion this is an unsustainable business model.