User blog comment:Derpinator9001/I'm leaving. Don't ask./@comment-28857013-20140206140801/@comment-28857013-20140207070937

Well, if we are getting only immature users, what can we do? Giving advertisement to those who are overage? But how do we know?

Then about inactivity of old users... well true. perhaps that's the only thing we can do, but I am not sure how long it will last before the inactivity already bored ourselves and made us inactive again.