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.