

“Legally required”, so they’re seeing it in the local laws. Some countries require websites to disclose who operates them.
For example, in Germany, websites are subject to the DDG (Digitale-Dienste-Gesetz, “digital services law”). Under this law they are subject to the same disclosure requirements as print media. At a minimum, this includes the full name, address, and email address. Websites updated operated by companies or for certain purposes can need much more stuff in there.
Your website must have a complete imprint that can easily and obviously be reached from any part of the website and is explicitly called “imprint”.
These rules are meaningless to someone hosting a website in Kenya, Australia, or Canada. But if you run a website in Germany you’d better familiarize yourself with them.
“The author wrote it that way to increase suspense. Don’t worry, though. My friends will be resurrected because they’re very marketable.”