Explain how the witch-hunt years were a time of "general revenge" in The Crucible?

False accusations during the witch-hunt years allowed many people to seek revenge against people they believed had wronged them in some way. If they wanted someone's land.... they yelled witchcraft. If people felt they'd been slighted.... they cried witchcraft. If someone was jealous..... they had the perfect opportunity to rid themselves of a rival by accusing them of witchcraft. Unfortunately, this type of revenge was widespread, and to us.... incomprehensible.