For example, the web page with copyrighted content can load a script from admiral's domain that would check whether a user is allowed to view the page or not. A

For example, the web page with copyrighted content can load a script from admiral's domain that would check whether a user is allowed to view the page or not. Adblocker is blocking that domain and therefore circumventing copyright protection scheme which is illegal under DMCA. The people who invented this are really smart I must admit.