It doesn't apply to the community, it applies to the game.
In the game you play to win. To do this you use what means you have at your disposal (except cheating), because that is the goal of the game.
On the forum you make friends and obey the forum rules. To do this you respect your fellow forumites, and that includes being honest and keeping your word - just as you would do in the real world.
A game of Dominions 3 = a tiny universe with its own clearly stated rules (the game code). Here you play someone else (a pretender).
The Forum = Part of the real world with similar rules and laws. Here you are yourself.
Cheers!
