In most cases those are just edgy people or outright doing it for image purposes only, many times admitting that in private they are many times believers.
So yeah. There are few examples in history and maybe today of legit Satanists, which in some cases were also clinically insane. But most of them - nah.
As far as rock music goes, a lot more that you realize is Satanic. It's pretty crazy. It's not just rock music. It's not always obvious and is subtle.
In most cases those are just edgy people or outright doing it for image purposes only, many times admitting that in private they are many times believers.
So yeah. There are few examples in history and maybe today of legit Satanists, which in some cases were also clinically insane. But most of them - nah.