There is a lot of massaging of inputs and outputs but at the same time: that's done by tweaking the model reinforcing those parts that are desirable and suppressing those parts that are not, not by rewriting the output, though there may be filters that check for 'forbidden fruits'. And it isn't the 'random average' of what people say, that would give you junk, the whole idea is that it tries to get to something better than a random average of what people say.

And by curating your sources you are of course going to help the model to achieve something a bit more sensible as well. Finally: you are probably not looking at just one model, but at a set of models.