"These young ladies don't deserve to be treated in this way."
She sentenced Guise, 33, to three years and four months behind bars, noting he had convictions for previous similar offending. He had pleaded guilty to all charges three days before his trial was to begin.
Judge Mackenzie described Guise's threats as sexually perverse and amounting to criminal harassment.
She outlined how he had obtained cell phone numbers of women aged from 14-24 mostly from the online dating site Find Someone.
He had threatened one woman he'd put a "hit" out on her through the Killer Bees gang.
He told another he was well connected with the Killer Bees, Black Power and Head Hunters and she would regret threatening him.
Referring to a victim who had visited Guise in Taupo, spending a few days with him before she 'cooled off him', the judge said he told her she'd "f****d with the wrong guy" and in another message said "you are dead, watch your back in the street" and "I know people who will take you out."
He'd told his 14-year-old victim "I'll take you head off ... smash you."
She said it was abundantly clear the community needed to be protected form Guise.
"You have completely minimised your offending, shown no remorse or empathy for your victims, no understanding of your behaviour."