EXCERPT COMMUNITY STANDARDS FROM FACEBOOK
Protect your account information and personal data
Using your true identity:
To ensure the request from Facebook to use the real name, for a more secure environment.
People connect to Facebook with their real identities. When people stand with their real name and reputation behind its opinions and actions, our community is more credible. If we find out that you have more than one personal profile, we can call on you to delete your profile. We also remove profiles that other people are imitated.
FACEBOOK SAYS HERE MORE THEN CLEARLY
THAT THEY REMOVE PROFILES THAT OTHER PEOPLE ARE IMITATED