I think @tagging makes thing too easy for people to search for topics they are involved. When we didn't had that, people had to search all the topics to find where they were mentionned, therefore, more chance for activity.
Plus, our lord and savior, Jesus God , didn't gave us x ray vision, which makes life way more difficult. Why do you hate us so much God? Why are you helping other galaxies ? Our galaxy is clearly better. See how many "Miss Universe" our planet won, we definitely deserve more recognition. Is there a "Toronto" type'ish galaxy somewhere that you are helping more for no reason ? We will never know. So fuck you God, and keep your child away from earth next time, it would have helped big time.
So yeah, ban tagging and God, obviously.