Good point harleyrider. In my past experience (albeit a long time ago in Internet time, and on a forum with a MUCH different user base and content), it was sometimes adventageous to explicitly add rules if something was becoming an issue. This wasn't some noble cause, but it made moderating much easier when we could point to a specific rule. It didn't leave the user much room to take issue with it. The problem we ran into then, though, was that as the list of rules grew, some people thought that if something wasn't expliictly against the rules, it was acceptable behavior. Kinda like the whole federalist vs. anti-federalist thing...but I'm no history teacher (Paging JD).
End result: I think INGO is just fine the way it is.
Again, my opinion doesn't matter and no one asked for it...but...yeah...
INGO needs a rule that says "When we say let it go................let it gooooooooooooo."