"Jane" allowed her ex-boyfriend to take her naked photograph because, he assured her, it would be for his eyes only. After their breakup, the man betrayed her trust. On the revenge porn site UGotPosted, he uploaded her naked photo and contact information. Jane received calls, e-mails, and Facebook friend requests from hundreds of strangers, many of whom wanted sex."
https://www.cnn.com/2013/08/29/opinion/citron-revenge-porn/index.html
I don't know about you, bust most of the revenge porn I see looks like mainstream porn pretending to be amateur.