There's no particular significance. Rich Skrenta hasn't been staff for a couple of years (2002 or so). The "root" permissions level has been updated in recent weeks to reflect the access needs and activity of various former staff members.
Editors with root privileges are also known to swap in and out of other permissions, and off and on skrenta's edit statistics have been given as "I am the walrus!" Such habits are incidental, at best, to the administration of the directory.