If it was actually Q, they would see the logic in confirming it was really them. They can do with that information what they will.
>It is technically impossible
Is it? All supposed evidence of this I've seen has been circumstantial at best. At the very least, 8kun personnel had prior knowledge that Q would post.
No way of telling if Jim or Ron aren't assets, someone could have tipped them off intentionally.
>any intelligence operation would expect verification of their sources
I agree. That fact that we haven't gotten it yet and whoever 'Q' now is has been content to watch us run in circles says a lot.