kevin bollaert was found guilty of 27 counts of identity theft and extortion .
he operated ugotposted.com , where anonymous users posted nudes without the subject 's consent .
he then earned tens of thousands from running changemyreputation.com , where victims would pay fees of $ 300 to $ 350 to have their photos removed .
also published their names , addresses and social media details .
he was sentenced to 18 years friday .
judge said the sentence reflected the amount of victims .
prosecutors said he took pleasure in hurting women .