I wasn't saying they weren't real names (though we'd need to define what "real name" means to actually decide that). I was just saying that in order to fit into my personal model of "consistency" they only need to seem like they are real names.
Secondly, as I sort of hinted at in my first post, I acknowledge that it wouldn't really make much sense to design a policy around my personal visual preferences, which I realize are a bit culturally exclusive. Nonetheless, I can't help but be annoyed by some of the names I see on Facebook.