With all the web 2.0 going on, I thought this would be a nice idea:
On all topics, there would be some kind of Vote button. If there are more then xx votes, the topics would be closed or deleted automatically.
You will have to moderate less, and it's a great way to give your users a little power.
I doubt there will a mod about this, so I hope somebody thinks about this! :)
It probably wouldn't be too hard to use this mod - http://custom.simplemachines.org/mods/index.php?mod=91, and adapt it so that a topic is locked from posting when it has a certain rating and rated enough times.
Ah, I didn't think of that yet! :) Thanks, will take a look in this!