your forum rules terrify me and i would really never want to be part of such a strict board. to be brutally honest though, i think you made the rules because you are anal and need a feeling of control and orderly conduct. good luck recruiting and keeping members on such a strict board.
Have you ever made a game before? You must be strict and dedicated to make a game. Spend your time well, and you can do great things.
Personally, I don't see how having rules will really help a person create games. People know not to act like a tit, swearing in moderation should be perfectly fine, in my eyes. Most of the people I know that actually make games are the ones that don't have such strict boundaries imposed upon themselves. Myself included.
I suppose you might have a different perspective. Sure, I can see this being precautionary, but I wouldn't outright ban swearing. I would, however, warn anyone who crosses the boundaries and starts cussing in excess. I fail to see the how the usage of colloquial language and interjections have any adverse impact on one's ability to create games.
Making games simple require creativity and the smarts (not really even this oftentimes) to accomplish it, and the time to work on it. Nothing else is really necessary.