"People don't share nudie pictures," according to Andy Wiedlin, chief revenue officer at BuzzFeed, who observes people want to share stuff that makes them look clever, altruistic, etc. -- "they don't share stuff that makes them look like perverts." This observation was by way of encouraging marketers to embrace user-generated (and shared) imagery, since, contrary to brand execs' fears, there's actually a lot of what might be called self-policing in terms of the content that is shared.