UPDATED: Facebook revenues are driven by scale and data mining. Some say the May 31, 2010 "quitfacebookday" was a bust because Unique Visitor numbers continue to climb. But there is evidence that the traffic may be inflated by people changing their Facebook status, and/or tools like Facebook Connect and the Like button. However, the data mining value is protected - even the information of those who have deactivated, deleted accounts, or just removed Facebook content from their pages.
Unique Monthly Visitor numbers are used by Facebook to define "active" users in the press. The "500 Million and growing" reports we hear so often from Facebook and the press are global numbers: http://www.businessinsider.com/facebook-reaches-500-million-users-2010-5 and http://techcrunch.com/2010/04/21/facebook-500-million-visitors-comscore/.
The US numbers are about a fifth, at just over 100 Million. Comscore data that says that monthly unique visitors were 111.9 million Download ComScore 2009 US Digital Year in Review: Page 7 in December 2009. Corroborating the latter, Nielsen reports 116.3 Million unique visitors in the month of January 2010. http://blog.nielsen.com/nielsenwire/online_mobile/facebook-users-average-7-hrs-a-month-in-january-as-digital-universe-expands/
On May 17th (2 weeks before the May 31st, "QuitFacebookDay"), Fortune questioned the backlash and reported that Facebook added a net gain of 10 million after announcing the controversial privacy changes. http://tech.fortune.cnn.com/2010/05/17/what-backlash-facebook-is-growing-like-mad/
A Comscore chart confirms that US monthly unique visitors increased at a much faster pace after a plateau from December 2009 - March 2010. The increase coincides with the Facebook policy change to shift of the default "share" from private to public and the launch of the "Like" button in April 2010. Makes you wonder what the change in momentum means.
Are these unique visitors "active" or "deactivating"? According to an ABC News investigation, Facebook does track deletions and deactivations but does not publically report them. In the ABC report, search marketing expert Danny Sullivan suggests interest in deleting Facebook accounts was significant since it did impact Google search trends:
To see how recent the Facebook trend was, Sullivan used Google Trends, which shows the popularity of certain searches over certain periods of time.
Although there was not enough search volume for "how do I delete my facebook account," he said he found something interesting when he entered "delete facebook account."
"Yes, there is definitely a rising trend," he wrote. "Over time, more and more searches at Google have involved it, it appears." Quitting Facebook: What Happens When You Deactivate?
Likewise, according to Joseph Dee, who started the movement, "quitfacebookday" was a trending topic on Twitter.
Directionally, polls suggest the Facebook backlash was real:
"60% consider quitting facebook" http://news.yahoo.com/s/ytech_gadg/20100521/tc_ytech_gadg/ytech_gadg_tc2184
"40%+ of Mashable readers say no" http://mashable.com/2010/05/31/quit-facebook-day/
"78% of CBS poll takers say Facebook privacy control changes did not go far enough" http://www.cbsnews.com/8301-501465_162-20006164-501465.html
In addition to considering deactivating or deleting accounts, Facebook members also reacted to privacy policy changes by removing content:
"only 2% say they would quit, but 81% say they are using Facebook more carefully" http://www.sfgate.com/cgi-bin/blogs/techchron/detail?&entry_id=64627
The other question raised by the change in Unique Visitor momentum in April 2010 is how Facebook user participation in Facebook "partners" is reflected in the Unique Visitor numbers. Fortune reports "partners" have grown to 100,000 http://tech.fortune.cnn.com/2010/05/17/what-backlash-facebook-is-growing-like-mad.
One way Facebook has developed partners is Facebook Connect (launched in Spring, 2008) in which Facebook member activity on other sites is dynamically published on their Facebook page, without ever going to www.facebook.com. Does this count as a Unique Montly Visitor for Facebook?
Another way Facebook has developed "partners" is the Facebook "Like" button. The launch coincides with the sudden increase in Unique Monthly Visitor momentum in April 2010. Wonder how Facebook "Like" button use factors into the Unique Visitor numbers, even if you never visit www.facebook.com?
Another Facebook partner are 3rd part y data miners. You'd think that removing content, deactivating or deleting your account would devalue Facebook to 3rd parties. But it appears 3rd parties still have access to information. According to the ABC investigation (above):
If a user decides to deactivate an account, the profile information is no longer available on Facebook, but the site still saves all of the information in case the user returns.
"We preserve the account in its entirety. People often deactivate for temporary reasons and expect their content and information to be there for them when they return," a Facebook spokesman said in a statement.
and Facebook is vague about what happens when the account is "deleted" rather than just "deactivated":
After the 14 days, Facebook said it purges the user's information from the site. The policy says copies of some materials may remain for "technical reasons," but Facebook did not immediately explain this further.
Those "technical reasons" include obligations to 3rd parties or partners. When you deactivate or delete your account they still have access to some materials. The ABC investigation confirms:
Still, Facebook said third-party applications or sites might be able to hold on to that information "to the extent permitted by our policies."