Answer
Grof has been awarded the Erratic Boulder Award twice, in 2012 and 2014. The Erratic Boulder Award is an anti-prize awarded by the Skeptics Society to individuals or organizations whose work or statements they consider to be "erroneous, irrational, unscientific, or harmful to the public". Grof's work has been criticized by some skeptics for its lack of scientific rigor and its potential to be harmful to patients.