According to Bryan Wilson, the Bruderhof is not a cult, but rather "positive and life-affirming,and it maintains non-violence as a basic principle." I am not sure what others think, but this is a very interesting paper from a man who spent his life studying cults and NRMs.
Here is the text:
by Bryan R. Wilson, Reader Emeritus in Sociology at the Universit
Forum: "Cults," Sects, and "New Religious Movements"