I have no idea what that is supposed to mean or how it is relevant.
Check out the site advertising stats here https://bitcointalk.org/adrotate.php?adstats
There is 5 times as much total traffic than there is coming from logged-in users.
From personal experience when I first got interested in Bitcoin in 2012 Google brought me here for anything and everything I wanted to know. I didn't actually join the forum until mid-2013. I also know that when I didn't use the forum for a couple of years that the referral link I left in my signature got about 5 clicks a day. That can only be because people were still finding the old posts I wrote back then, I'm pretty sure Google had something to do with that.
Thanks for that info. I did not knew that.