And yes, HBO confirmed it here.
Most Helpful Girl
Nah, not mad. I love the show, I think it's one of the prettiest shows I've seen, but it has to end sometime so who really cares. Besides, as @ThisDudeHere says, we can all see what happens when shows get stretched out too long :P
Most Helpful Guy
No, glad even. Good shows should not be stretched beyond their natural endings *coughSupernatural *cough