I voted no, for many reasons.
I wasn't around when SR was in Pro/Noob sections, but trust me, I've read enough old threads to tell that it was a bad idea. Nearly every thread turned into people arguing because somebody posted in the Pro forums and it just gets ugly. We certainly don't need that.
Another reason is because it basically segregates the "good" riders from the "bad riders". In a way, it makes noobs inferior to the advanced riders. It makes us unequal. And when the equality of a community is compromised than the community itself can be split apart. I know it sounds stupid, but its just like slavery. If you know your history than you'll know, when slavery was still legal back in the early 1800s the nation was split, slave states vs. free states. And of course, this lead to the Civil War. That is not the kind of thing SR needs.
And I also think the people placed in the noob section would always be complaining. There would be argument about where to draw the line between pro and noob.
So yeah, I think if SR was split again it COULD cause it's demise, but I don't think that would happen, because of our faboulous admin and mods.
just my 2 cents