Well, we only need a directory of resequenced feed definitions + some kind of resequencing program that runs the definitions onto a page in a decentralised man

Well, we only need a directory of resequenced feed definitions + some kind of resequencing program that runs the definitions onto a page in a decentralised manner. With resequenced I mean that when applied to a page of markup it can create a feed from it. So imagine it downloads the latest definitions periodically that fix compatibility for service X then everyone who creates feeds of X pages can do so again. If you can specify the definition directory in the settings then even if a directory is no longer active another can take it's place. That means it takes one person to fix, but the service would have to ban all instances to stop this way of consuming. I think most of the puzzle pieces for this exist already.