全く持って意味不明な警告が来て動画が削除されてしまいました。
これっていたずら通報のせいでしょうか？

Hi XXX,

As you may know, our Community Guidelines describe which content we allow ?
and don't allow ? on YouTube. Your video "XXX" was flagged for review. Upon review,
we've determined that it violates our guidelines.

We've removed it from YouTube and assigned a Community Guidelines strike,
or temporary penalty, to your account.