The accusation was that if you were an exceptionally heavy user of the service, they'd start taking 2 or 3 days to send your next movie after you returned one.

The accusation was that if you were an exceptionally heavy user of the service, they'd start taking 2 or 3 days to send your next movie after you returned one. That said, I'm not sure what the threshold was, because I was a very heavy user during that time and I never hit the problem. As such, whatever the threshold was, it was high.