That's only true if only a small percentage of users actually use that particular ad-blocking strategy. If a significant number of users did, then it would be

That's only true if only a small percentage of users actually use that particular ad-blocking strategy. If a significant number of users did, then it would be a real concern. Although I think YouTube et al see an increasing amount of revenue and viewership coming from apps... and if they could, I suspect they would kill their web sites in favor of apps where they have much more control.