If you depend on it to pay your rent, you're going to need lots of people to click those buttons - and when lots of people do it you care less about how much each one gives and more about the averages. Flattr should publish "average pay per click" statistics, I suppose.
And I do think that it's an elegant solution that reduces the number of actions required to contribute to things you enjoy to a single click.
[edited to add]
Another way to think about it is that the variable is not the percentage of visitors that are willing to pay X dollars for your content, instead it's the average payment of the visitors that are willing to pay anything for you content.
And I do think that it's an elegant solution that reduces the number of actions required to contribute to things you enjoy to a single click.
[edited to add]
Another way to think about it is that the variable is not the percentage of visitors that are willing to pay X dollars for your content, instead it's the average payment of the visitors that are willing to pay anything for you content.