Since I'm such an FF fanboy, I wanted to put down Fabula Nova Crystallis (the collective name of FF XIII, Versus XIII, and Agito XIII) as my motto for my XBL gamertag, and when I entered it, XBL told me that the motto had "inappropriate words or phrases and must be changed"

don't believe me, try it for yourself

Reporting you for foul language.

Probably since it is in a foreign language and may be close in spelling to inappropriate words in other languages. (just a guess).

Fabula Nova Crystallis, which means "the new tale of the crystal," in Latin
that is not very offensive. !?!

One of the words is probably used a censor bypass or something in a language.

crystallis is too close to phallus?

heh, I think that's a bit of a stretch. It's weird though, I wouldn't see anything there that's even close to a bypass or offensive word

It means new tale of the crystals, is that like against religion?

or maybe its cus they don't want people advertising Versus & Agito on xbox live roflforlforlforlf j/k

Well done, sir... :)