It depends on in which way you wanna view it. There's those who are Luciferian, or a the typical BS satanist vision/belief as Anton Szandor LaVey put it such as: Living for your own self pleasure, causing chaos and all that stuff. He honestly had no idea WTF he was talking about. A true Satanist does not sacrafice virgins or your first born. They're not going to burn down your house or put upside down crosses in your yards. Though a friend and I did turn a cross upside down at school for a cheap laugh once...
A person who parades around saying, "OMG! I'M A SATANIST! I'M SO GOTH! I'm like gonna HEX you!" Will learn the rude awakening of the ThreeFold law.
The only way to understand something is to actually read about it. That doesn't mean you have to practice it or anything such as that. I have a few friends who are Luciferians. Infact, my best friend is one. They're no different. They never forced anything upon me. There are a few things I don't agree with and I've talked to them about. They're not gonna bite your head off if you ever wanna ask'em a question.
I have friends of many religions. They're interesting to learn about. Not something I, myself, would follow, but now that I'm getting a better understanding of it, it never bothers me. :]