That's some serious accusation you have there. Let's look at the situation: Someone threw a joke that you scammed some coins from the MyBitcoinCoin and now you're going all out how the person is abusing 7 year old children and what not. That's way out of scale man.
Please do post your own proof: what are the other aliases of Bruce Wagner that are discussing about child abuse and how did you come to the conclusion that they are the same person?
I'm open minded and not locking any possibilites away. So please do elaborate on your claims.