Isn't that what people are already doing?
Craw runs, Farmory, etc
People are already going back to the same area over and over trying to get good stuff
People are going back to those areas because they are exploitable.
I found 2 pearlescents just by farming Knoxx's armory by way of falling through the floor.
Gearbox won't fix it because something about the 360's way of patching, can't quite remember. So yes thank the consoles for giving us unlimited nummies.