Original: In 1975 LaVey created controversy within the Church of Satan by phasing out the Church’s “Grotto” system and eliminating people he thought were using the Church as a substitute for accomplishment in the outside world.
Simplified: In 1975 LaVey made arguments within the Church of Satan by stopping the Church’s “Grotto” system and removing people he thought were using the Church instead of doing things in the outside world.