That's very much in question now. I can no longer watch YouTube videos when I have an ad blocker extension installed. Instead I just get a warning that I'm violating their ToS and need to disable my ad blocker.
YouTube has been rolling this anti-feature out slowly to more people for the past few months. It will presumably hit everyone sooner or later.
YouTube has been rolling this anti-feature out slowly to more people for the past few months. It will presumably hit everyone sooner or later.