The most popular ad blocker, Adblock Plus, not only supports blocking URL patterns, it can hide elements within a page via arbitrary CSS selectors. Any large-sc

The most popular ad blocker, Adblock Plus, not only supports blocking URL patterns, it can hide elements within a page via arbitrary CSS selectors. Any large-scale attempt to bypass Adblock Plus would be a cat-and-mouse game requiring advertisers to constantly change their DOM "signature" to keep ahead of the filter writers.