The real question here is: Why do we have to be so dramatic over a belief? Satanism must have no such of idiotic stuff such as: Membership fees, "no belief in actual Satan". These are just ridiculous.
People are trying to make Satanism as a form of job and by doing this they discriminate the belief. Satan/Lucifer is an actual being as Christ is for Christians. We just believe in different "stuff" and aspects which are explained in the blog.
Satanism is a belief, not a souvenir shop idea. Satanism has many aspects and every aspect has its own interesting facts and practices. Although the one we worship is Lucifer , Satan.
The image has been taken from: https://thesatanictemple.com/ | With permission.