Logging off new sign

So before, when you logged off, it said nothing, then, it said "alert you have been logged of" and now it says "oops... you have been logged off". I wonder why they did that anyway... I mean you chose to log off then they tell you, that you logged off! I mean, you already knew that... right? And I even more don't get why they say oops... you have been logged off NOW because oops... just doesn't make sense since you chose to! XD Anyways, that's their choice! :P