The less rules the better. The shorter the better. Then if a rule isnt broken as such but the poster is obviously not good for the site, then mods should use their initiative.
I agree with this. The rules should be good, but simple and short. Keep it to, say, ten.
1. No personal attacks
2. Post on topic
3. Personal information
4. Don't alt obnoxiously
5. Use appropriate channels
6. Don't be offensive
7. No excessive BBCode or whatever we decide this rule should be
8. Always post in the appropriate board
9. Respect the OP
10. Moderators have discretion to moderate outside the scope of these rules within certain circumstances
Adding more rules can be the job of the council