Board Thread:General Discussion/@comment-180.72.66.61-20161010085858/@comment-5956954-20161010095538

https://en.wikipedia.org/wiki/Children's_Online_Privacy_Protection_Act

What Xytl said. It's meant to protect children under 13 from getting their information and data collected from web companies like Wikia. I consider its reason being that the information can make the user identifiable (Checkusers exist after all).

As with NSFW stuff, they can do what they want.