As a legal fine point: the list I want isn't just "sites which have used DMCA takedowns to force removal from other blacklists," but more like "sites which alle

As a legal fine point: the list I want isn't just "sites which have used DMCA takedowns to force removal from other blacklists," but more like "sites which allege that they are legally required to be loaded if embedded in other sites." This would include all Admiral-owned domains (including those that haven't been included in DMCA takedowns yet), and all domains owned by any other companies that believe there is some legal obligation to load their trackers. It's an important list to have. Echoing other comments, this list should be in a standard .txt form so it can be included by other extensions, so I can pick an extension that does what I want when it encounters such a site (e.g., decline to visit the page that embeds the site).