fina
Here is my original comment: "Well, part of the point is (or will be) that most people on the Internet creates content. Like you just did when you wrote your comment. I guess this will be clearer when the API stuff gets going."
While I do feel pretty unmotivated to explain what I mean, I'm going to give you the benefit of the doubt.
One of the more highlighted features of the Internet is that the line between customer and consumer has been blurred. Today you can create what was previously only known as a TV channels or newspapers in the form of video sharing or blogs. Even when traditional media publishes something, you can follow-up with your own view. Because of this and social media trends, almost every Internet user is also a creator. The upcoming Flattr API will let sites with user created content have their users flattr each other and take part of the revenue of those flattrs.
I can't really explain entire concept (as I see it) in a good way, you'll have to "get into it" yourself. You also have to keep in mind what the founders are coming from. I don't think it would be a very good fit for Peter Sunde to push for "paywalling" of the Internet with a subscription network.
Finally, the monthly minimum amount is currently 2€.