Originally Posted by Dr Unne
I always find that vaguely amusing. Can I say I own the copyright on the fact that an Ogre has 195 HP since it's on my site, and people who write down that fact need to ask me first? :) I would ask someone before I blatantly uploaded something they wrote unchanged to my site, but I have no problem using someone else's info as a reference source, even without asking them. You can't own facts. I let people take pretty much anything from my site that they want without asking, for example. All game information is actually owned by Square (if anyone), not by website makers or walkthrough writers.
If I ever used something from someone else, I'd give them credit because I'm nice, but not because I feel like I have to. That is an interesting FAQ though, I hadn't seen that one. It may be helpful with monster locations, if nothing else. I'm not sure about most of the other stuff. I don't want to turn the game (or my site) into an algebra lesson.
I think when you get to the level of decompiling a game to mathematically map its battle mechanics, you've not only crossed the line between "fun" and "not fun", you've lit the line on fire and danced upon its flaming corpse. Though I guess people have their own notions of what is fun.