That thing's kind of creepy. Being oblivious to it was better.
Yep, I thought the same thing once too. I was mortified that others could see what I was reading. Then I just got over it.
It's a good way to see what topics are being read and see ones others seek out that you might not have found.
It's almost like an adspace for threads of interest for me.
But funny when I catch others viewing who's online.