https://www.cnet.com/news/youtube-ceo-says-disabling-comments-on-minor-videos-was-a-trade-off-for-child-safety/

"This change took away some of the abilities of young people who are innocent," Wojcicki said Friday at the Lesbians Who Tech conference here in San Francisco. "In the end, that was the trade-off that we made because we felt that we had to make sure protecting children was our number one priority."

The controversy over child exploitation began last week when a video blogger named Matt Watson detailed how pedophiles could enter a "wormhole" of YouTube videos to see footage of children in sexually suggestive positions. In the comments of those videos, users would post timestamps linking to other videos, and YouTube's algorithms would recommend even more of those kinds of videos.