Rise in Duplicate Profiles
The number of fake Facebook accounts that were considered malicious in the second quarter of 2012 accounted for only 1.5 percent of fake accounts at that time. However, by the fourth quarter of the year, that number had declined to only .9 percent. There are higher percentages of duplicate or misclassified accounts (think pages for pets, inanimate objects, mascots, etc.) than truly harmful spam accounts, but Facebook knows that the vast majority of those accounts are fairly innocuous. They’ll most likely get around to eliminating those eventually, but for now, the number of undesirable accounts on the site is decreasing, and that can only be a good thing for Facebook’s 1 billion active users.