I said it to you and I will say it here also. Evidence does not count if you can't at least show it to the accused. And no, it doesn't matter how confidential it is. If you want to use it to justify a gb on a alleged gb then the accused should be given the opportunity to defend themselves.
Sure you don't have to as far as the game goes. But the accused and the community don't have to accept your verdict as valid either.
You read(assuming here) something that you interpreted as call for a gb. That may be true(I have my doubts). But it may not be. And you will never know, if you don't show the evidence. It doesn't have to be public. But everyone deserves the right to defend themselves.

I know some if not all do work hard to make this process as fair as possible, that definitely includes Zauper.
But anytime you don't have checks and balances it leaves too much room for abuse. Not saying you are abusing anything, just saying it makes blind trust hard to come by.