You're making the mistake of thinking TFP is some kind of democracy where there are set laws that can be argued over, it took me a long time to discover it, but TFP isn't.
TFP is more like a community run by the 'influential' (moderators, super moderators and admins) who can ban and alter anything they want.
Off course there exists within the community a set of social rules, and they are largely those you will find on other forums and in RL. Though they are seldomly written they are known by all to some extent.
And as for minor offences, the mods are pretty tolerant. It is merely the 'capital' offences you have to be weary about... but obey common sense and don't be TOO hasty with posting and you'll be fine.
On a sidenote, I do admire the power structure on TFP, on a medium of chaos they have managed to create a place of social structure and a spirit of cooperation and acceptance.
to the mods and Halx.
BTW: Anything I have said is written at 1 am and while slightly inebriated, spelling and grammatical errors are to be excused, if you would.