I was under the impression that f11 = Crys and Nightmares = Chrys. Any mention of Crys I knew was f11, but I remember there being a couple mentions of a "Chrys" sprinkled in throughout the game, so that must have caused a good amount of confusion.
Overall, I don't think it changed my opinions on either of them.
You're contradicting yourself. You just said before that you thought Crys was Nightmares and now you're saying that you thought Chrys was Nightmares and that you knew that f11 was Crys. The only mention of Chrys I could find in the game was towards the beginning in only about two posts. Chrys isn't even playing in the game.