The url's in the lists are (mostly) ad companies though. It just doesn't send the http requests to url's on the list. I could set up a website out of the blue

The url's in the lists are (mostly) ad companies though. It just doesn't send the http requests to url's on the list. I could set up a website out of the blue and have it serve ads that would be successfully blocked by any adblock on day one without it knowing about my site specifically