Normally you'd be right about how you can't prove something doesn't exist, but if you go up thread you'll see that xcrunner claimed that the laptop contained only dick-pics. It's fair for Alvah to ask for proof.

Had xcrunner simply asked for proof the burden would be on Alvah to provide it, but because xcrunner made a claim he took the burden of proof on himself.

Excuse me? No I didn’t.

I was never discussing the leaks. I was discussing what Twitter took down (aka what was reported to them).