Whino, this site is running Win2k like RB is, but RB is running uptimes that are 400% longer. I'm not sure if iHub is having stability problems or if Matt just cleans and reboots the system once a week. He's averaging a little over 7 days a reboot, so I suspect he's doing it for maintenance reasons only.
As for RB, I have a theory why the site is performing so poorly, but without access to their systems it would be speculation based on XPerience only.