When sites attempt to block users who use ad blocking extensions, dynamic filtering allows well written ad blockers to continue to work.

For instance:

> Last year, Google/YouTube ramped up its efforts against ad-blockers, preventing playback for users with the software installed on their devices, coercing them to disable it.

Users continued to exploit loopholes in browsers and third-party extensions, such as Firefox, that allowed them to bypass YouTube's ads while watching videos. However, the tech giant has seemingly doubled down on its efforts against ad-blockers, closing the few remaining loopholes

https://www.windowscentral.com/software-apps/streaming-video...