Ads do not appear, for example, against news agency reports and videos. YouTube commentators who discuss all the mess. Some videos also contain content warnings before starting, pointing out that they may be "inappropriate or offensive".
Momo's challenge was actually Streisand performed in a dangerous place in the public consciousness. It began to spread last summer, when false alarms about the challenge claimed that people with a profile photo depicting a truly scary statue were sending threatening messages to children on WhatsApp, urging them to to hurt or hurt others. Reports also suggested that the character was mixing with children's cartoons on YouTube (this was not the case). The hoax has resurfaced in recent days, resulting in a wider coverage of Momo's news.
The same artifice has since been perpetuated to the point where schools urge parents to protect their children (although adults should in any case keep a close eye on what young children are doing online). Indeed, reporting on the challenge could have given it a greater secondary impact, by encouraging people at risk to think about the alleged end game of Momo's self-harm. In addition, the more people hear about the Momo Challenge, the more likely they are to insinuate that term into Google and give up on a horrible rabbit terrier.
The conspiracy theories and hoaxes prevalent on YouTube are primarily motivated by the fact that they are a juicy food for clickbait and that creators can earn ad revenue by attracting thousands of viewers to allow them to watch videos that often contain totally false content. Disabling a critical cash flow for Momo-related videos will deter YouTubers from focusing on their creation. Although YouTube's gesture does not kill the meme directly, it should cut an important tentacle in the spread of the hoax.