Use of this is an instant way to let the entire online world that you're a complete idiot. Originally a crass way to make fun of someone who is irrationally upset about something, is now used by total douchebags
who don't have a creative or original bone in their body to troll
on someone who expresses the slightest displeasure in anything. See also: You/u mad bro?
Football (American or the kind with 2 keepers) fan: Shame my team lost, but they played hard, can't ask any more that.
Douchebag: Don't get all butthurt
because your team lost.
Football team fan: Did you actually type that yourself, or just copy and paste it from somewhere else? Because you sure as shit didn't think of it on your own, you fucking mindless tool.