Proof of what? Proof that he is another user? How exactly does one prove that? Oh that's right by Badbear claiming he has some magic formula that says 2 usernames are the same person, but he can't share the information because it is a matter of forum national security.  That seems like a worthwhile request.  

P.S. Quickseller the fact that you are here arguing for yourself using your alt says volumes about you.