(Original post by Mequa)
Years back, I was a moderator on a LaVeyan Satanist forum for around 2 years. (I am no longer on good terms with them, long story short, I got a lifetime ban.)
While these guys are often criticised for making selfishness a virtue, in my first-hand experience it is not self-interest which is their real issue.
Satanists have a tendency to be extremely narcissistic and snobbishly elitist people, which tends towards online phenomena such as flame wars, trolling, cyber-bullying and often cyber-stalking. The various factions of Satanism tend to hate each other, most notably theistic vs atheistic Satanists, but also those who politically lean to the Far Right are bitter enemies of those who combine Satanism with left-wing ideologies. LaVeyan Satanists often hate each other too, due to allegiances with rival groups (such as Peter Gilmore's Church of Satan VS Karla LaVey's First Satanic Church), which although being almost philosophically identical in outlook, are bitter enemies. People still get banned from fora for being a member of a rival forum, or at the very least ridiculed. Grudges are held for years.
The Order of Nine Angles, which I linked the Wikipedia page of, is one of the most controversial Satanist groups of all time, due to its avowal of neo-Nazism, open promotion of human sacrifice (e.g. murder) and other criminal activities. It may not even have been a real organisation, but in the last few years it saw a resurgence of interest on the Internet with many groups claiming affiliation and promoting its unsavoury tenets. Most of these groups closed down recently, largely due to some bitter in-fighting.
Satanism is one hell of a subculture (excuse the pun), but is really not a pleasant one in many ways. Pseudo-intellectualism and often overt anti-intellectualism abounds. It is very common for people there to gain social status and climb the pecking order through sexualised interaction, and are willing to abuse the privileges offered in return, whether through being able to insult and abuse others with impunity (with harsh measures dished out if those lower down the pecking order reciprocate), or go rampant with a ban-hammer on online forums, and this is often painted as a form of meritocratic stratification. Those "coming out on top" assumed to have done so out of genuine merit.
LaVeyans have the notion of themselves being an elite form of human being. Those who lean towards Order of Nine Angles doctrines regard the majority of humans as "mundanes", and such misanthropy often lends itself to a fascist worldview where the masses of humanity are viewed as cattle, ideally to be ruled with an iron fist (and "culled" as necessary). There is a lot of testosterone-fuelled narcissism here. Whether it is "evil" or not is another question, but it seems to me more like a bunch of p!ssy misanthropes having a circle jerk.
While some of LaVey's ideas do have merit, and I still have a soft spot for LaVeyanism in some ways, I am happy to no longer have involvement with them. Also, bear in mind that LaVey was basically a con artist using notoriety to push his own ideology (in the form of a parody religion) and draw in the membership fees for his "church". In some ways Satanism hasn't escaped from the worst parts of Christianity. There are bitter factions, there is bigotry, there are con games, but combined with some of the worst adolescent-style drama I have ever witnessed. Still, I'd rather know a LaVeyan than a Christian fundamentalist.