https://www.cnbc.com/2019/01/16/youtube-bans-dangerous-challenges-and-pranks-after-bird-box-stunts.html

YouTube will clamp down on content that shows people engaging in dangerous activities or pranks that cause emotional distress.

Google's video sharing platform published guidelines on Tuesday to address a growing number of "dangerous" trends, including a recent spike in videos showing people attempting the "Bird Box challenge."