AC did catch on among certain circles. He is considered the most influential magician of the last 100 years, and has been referenced as widely as the Beetles Sargeant Pepper's album cover, the lyrics of Ozzy Osborne, Tool, David Bowie, and others.
For the mainstream, though, he has been branded a Satanist, and guilty of child sacrifice. Despite the absurdity of these allegations, many just form a knee jerk reaction that may prevent him as a person from ever "catching on" in the mainstream. Meanwhile, his ideas have continued to spread.