Dear Craig, how about this one:
"Discussion Forums
This site maintains privately owned and operated discussion forums. The general public is welcome and encouraged to participate as guests here as long as such participation is maintained within the boundaries of common courtesy, the guidelines of Internet etiquette, and any specific rules and requests of the forum hosts. Any violations--real or perceived--will be addressed as the owner or his authorized helpers see fit."

My only contribution here is the italic / underlined features of the font. All the rest is the house rules of this place as they are written down for us all to stick to I politely guess.
Of course it also comes down to one's own understanding of "common courtesy". I just hope that for a second-language English speaker I get it well enough-
Have a great weekend.
Fabrizio from Italy