Originally Posted by nedry

Could be trying to encourage more people to sign up for accounts, even the free "basic" option. It also occurs to me that "do something like delaying a few day's visibility for the unregistered then see who complains" could be a useful trick to smoke out leakers, like the old Arabic saying about how "when you throw a rock into a pack of dogs the one that yelps is the one you hit" or the "Canary Trap" from Tom Clancy's novels.