La scorsa settimana, durante la sua prima relazione trimestrale utili come società pubblica, Facebook ha rivelato di avere 955 milioni di utenti mensili attivi e 543 milioni di utenti mensili attivi mobili.
Quasi il 20% del numero di questi ultimi, nel mese di Giugno, ossia 102 milioni di utenti, hanno effettuato l’accesso al social network esclusivamente dal proprio dispositivo mobile.
Facebook stima che 4,8% sono duplicati, 2,4% sono utenti mal classificati, e 1,5% sono gli account indesiderati.
Già nel mese di Marzo, Facebook aveva dichiarato che il 5-6% dei profili erano falsi o duplicati. Questo significa che una quantità enorme di account falsi sono stati creati negli ultimi cinque mesi.

Qui trovate i dettagli ufficiali:
The numbers of our MAUs and DAUs and ARPU are calculated using internal company data based on the activity of user accounts. While these numbers are based on what we believe to be reasonable estimates of our user base for the applicable period of measurement, there are inherent challenges in measuring usage of our products across large online and mobile populations around the world. For example, there may be individuals who maintain one or more Facebook accounts in violation of our terms of service, despite our efforts to detect and suppress such behavior.
Now for the goods:
We estimate that “duplicate” accounts (an account that a user maintains in addition to his or her principal account) may have represented approximately 4.8 percent of our worldwide MAUs as of June 30, 2012. We also seek to identify “false” accounts, which we divide into two categories: (1) user-misclassified accounts, where users have created personal profiles for a business, organization, or non-human entity such as a pet (such entities are permitted on Facebook using a Page rather than a personal profile under our terms of service); and (2) undesirable accounts, which represent user profiles that we determine are intended to be used for purposes that violate our terms of service, such as spamming. As of June 30, 2012, we estimate user-misclassified accounts may have represented approximately 2.4 percent of our worldwide MAUs and undesirable accounts may have represented approximately 1.5 percent of our worldwide MAUs.
Fonte e approfondimenti: cNet
