It doesn't matter how many users you have. This "solution" seems like swatting a fly with a nuclear weapon. Why not just take down the offending video until the user takes corrective action? YouTube can clearly identify the offending video out of the non-offending ones, so that's not a technical problem. And it can be done entirely with automation, so it wouldn't need humans. Further, they obviously can tell that the user does not have a history or track record of this kind of activity. Why do these tech companies always go straight to the "no recourse ban hammer"?