Right, onto the REAL answer other than that disturbing image.
I hated writing Cupcakes because the first original Cupcakes scarred me and I could never eat Cupcakes again, it mostly scarred me because Rainbow Dash is my favourite character. The second Cupcakes was not as bad but the story placed it's pieces in the puzzle and my mind worked as such:
Pinkie Pie escaped the asylum = Twilight will die
So my mind devised a plan to end it all but I did NOT want to write Cupcakes, when my mind is derped at 1:00 AM I pretty much do whatever to stay awake and so I was more or less forced to write it. After I wrote it I slowly began to get over Cupcakes, I still am scarred but right now I know my insanity is on the brink of shattering, thus the reason why I will NOT read Cupcakes 3 at the moment.