Hey, jump right in :)
The problem with this scheme is that so many terribly, terribly stupid posts are on-topic, polite and in no way break any of the rules. Moderating for quality is almost impossible to do fairly and well and is by definition subjective.
Thing is, forums like FR let everybody have an equal chance to get up on the soapbox. I think that's a mind-blowing and fantastic thing - the real miracle of the internet, and one that I think is going to have a genuine impact on society.
Unfortunately, some of those voices are going to be stupid or stone cold crazy or merely inarticulate. It's just inevitable. I don't know how many thousands of posts hit FR every day, but it's a cinch that probably hundreds of them are embarrassingly dumb.
Given what platforms like FR are trying to do, I think it's terribly unfair for Rush (or anyone) to latch on to the worst messages of the day and call them representative. I'd hate to see more rules imposed because some people "out there" don't get the concept.