We are not vengeful Gods 
When you all start popping you will think us evil.
But think of the lessons you have learned along the way.
That you are not the Gods that you think you are, and perhaps there are forces out there that even your great species -- thousands of worlds under your control -- cannot possibly understand.
Let me assure you, I've already send word to our Earth's representatives.
We are making planets under our control (which are infinitely more than you can comprehend) make sure they check regularly for back spots/lumps and to squeeze them whenever we see them.
Oh yeah.
This is as far as you go in secret.
And we will begin soon destroying the species on the worlds you have already enslaved
You stepped on the Motherload with this one.
This is Gods planet.
DO NOT TOUCH
The signs say, for as far and as wide as we can send them
But you laughed and thought you were great.
We will see about that.