HN mods don’t have that much capacity. You would need a team of approvers. And it would be a boring job!

Instead just internally sticky note people who flag something that is later vouched or vice versa. Then review these noted people and shadow ban their vouch/flag powers if they are making a lot of off decisions.

I reckon an algo like this would catch a person a day and would be easy to review. This reduces trolls.

(BTW: If your submission is fine and gets flagged your other remedy is to submit again a day later.)