Moore then performs a quick background check on the subject — those submitting must provide a person's full name and city — and if anything is questionable or unverifiable, Moore said he contacts the National Center for Missing and Exploited Children.

In the vast and untamed world of amateur erotica, Is Anyone Up? most broadly fits into the category of what the media have deemed "revenge porn." Many of its photos are taken with a cellphone and are believed to be submitted from a jilted ex or anonymous enemy. A recent episode of Anderson's Cooper's daytime talk show "Anderson" featured Moore as a guest, as well as a young woman who admitted submitting her friend's photo to the site out of what Cooper deemed "revenge."

Getting a photo removed from Is Anyone Up? is possible, but there are hurdles. First, sending a takedown request risks calling more attention to the picture, and, as Internet law attorney Colette Vogel said, "The practical problem is that it's out there. You can't put the toothpaste back in the tube."

The Times contacted 30 non-musicians who appeared naked on Is Anyone Up? but received no responses. Most artists and labels contacted for this story declined to discuss the site on the record, including advertisers Century Media and Razor & Tie.

"Sometimes just letting it be and not doing anything online to draw attention to it is the best thing," said Vogel, who helps oversee nonprofit Without My Consent, which is dedicated to educating those who have had their privacy breached online.

Though Moore seems like the least likely character to preach self-restraint, when it comes to avoiding an embarrassing post on his site, abstinence may be the best defense. "My site is just a big campaign against technology and what you do with yourself," Moore said. If someone wants a photo removed, Moore said the subject needs to fill out the takedown form on his site. Emailing him directly, he said, won't accelerate the procedure. "I understand it can hurt your reputation and your job and yadda yadda yadda, but you have to go through a process," Moore said. "It's like the DMV. Pull a number and get in line."

Moore knows the site hasn't exactly made him popular. He once posted a story online in which he claimed to have been stabbed with a pen by an angry victim, but he declined to comment on the supposed incident.

And judging by the healthy turnout for a late summer party for Is Anyone Up? at West Hollywood's Key Club, which included several label representatives, those in the music world aren't avoiding Moore as much as one might imagine. During an interview outside the venue, Moore was interrupted numerous times by fans approaching him as if he were a rock star.

"My ex just sent you nudes the other day," said one college-aged boy who wanted to shake Moore's hand. A 17-year-old girl, who said she wanted to be a photographer, made the trip simply to greet Moore.

Moore has big plans to further legitimize the site. First, and perhaps within a few months, is to launch a mobile phone app. He envisions Is Anyone Up? becoming a social network dedicated to sex and rock 'n' roll. "I don't see this declining," Moore said. "You know how many girls send their own photos? It's odd. Why would you send me anything?"