Well, the ones you regard as Satanists.
Those who actually are Satanists. Being a Satanist is a trait or characteristic. That's why we traditionally states that Satanists are born and not made. The satanic religion is only meant to create and maintain the barrier between the Satanists and those who are not.
You wrote that Satanists are those who can disagree about anything. That they doubt everything. That would exclude the consensus as to what it means to be a Satanist. What if such a person contests or doubts your personal vision of Satanism? You're basically saying here that people can doubt everything and disagree with everything except... your definition of Satanism. That means nothing else than that they must accept what you say or they aren't troo Satanists. Also since Satanists are born not made, they will naturally accept your gospel of Satanism. How that goes with critical thinking? Does it even makes sense?
I will now say something that will probably fly over your head. The barrier you're talking about doesn't exist in reality. It's a propaganda trick used by organizations meant to strike down the competition and ensure the membership loyalty. This is why the Church of Satan calls the Temple of Set pretenders and vice versa. This is why the ONA calls both the Church of Satan and Temple of Set pretenders and this is why both the CoS and ToS call the ONA pretenders. And this is why the CoS refuses to consider TST to be Satanists while TST claims that Satanism is what they claim it is.
This is the message sent to the public and to potential candidates: "We are the only valid Satanic organization. The competition are fakers. Come to us, don't come to them. Listen to us, don't listen to them. "This is also the way to silence the dissent: "Those who disagree with us are fake. If you leave us, say something else than us, you're fake. If you join any other org you're fake." This is especially crucial for the CoS as they are the main interest of the media, scholars and have long been the voice of Satanism as far as the general public is concerned. They also earn money from membership fees. For other organizations, it's the matter of prestige.
The only barrier that exists is between masters and pawns. The masters set doctrines, weave propaganda, design the mythological matrix and gather followers, the pawns obey and follow blindly. Half of Anton LaVey's biography is a legend. The guy liked pulling fairy tales out of his ass and charm the audience with them. He had natural charisma and managed to enchant and fool even his friends from the magic circle. And to this day, long after his death, the fools come to the forums and say shit like: "It's written in the Satanic Bible so it must be true. LaVey said it so be it."
Figure out for yourself which side of the barrier you're on.
