Newbies...roadkill on the superhighway of Linden ambition. Signups matter more than log-ons or stay-ons.
Bots can crank up the user hours and you can just make up their demographics to suit what needs tweaking. How much of this goes on in Linden statistics, I wonder?
The new user experience on the revised Orientation Island is so God-awful that it must be consciously evil.