[TheEzEzz]

If you read the abstract it appears that ChatGPTs explanation is on point. You're right that the paper is relying on consistency, which doesn't guarantee accuracy, but it is what the paper is proposing (and they claim it does lead to increased accuracy).

[kmonsen]

An accurate answer has to be consistent so it's not all bullshit. I'm guessing you can at least filter out inaccuracies by finding inconsistencies. Or in more plain English if you find somewhere it gives inconsistent answers you know those are wrong.

I'm not sure if that's a good path forward. You really want to find when it's good, not filtering out bad cases.