Worth pointing out (but not mentioned in the article):

Since switching to a new design, there's actually no way to view anyone's profile without logging in, not the basic info as there used to be, nothing. By following the link to someone else's profile, you're being greeted with the signup/signin page.

So, you can't effectively open anyone's profile without triggering the "who looked at your profile" thingy (other than opening a spare account for that purpose, of course).