I'd also like to challenge people to actually consider how often humans are correct. In my experience, it's actually very rare to find a human that speaks factually correctly. Many professionals, including doctors (!), will happily and confidently deliver factually incorrect lies that sound correct. Even after obvious correction they will continue to spout them. Think how long it takes to correct basic myths that have established themselves in the culture. And we expect these models, which are just getting off the ground, to do better? The claim is they process information more similarly to how humans do. If that's true, then the fact they hallucinate is honestly a point in their favor. Because... in my experience, they hallucinate exactly the way I expect humans to.
Please try it, ask a few experts something and I guarantee you that further investigation into the topic will reveal that one or more of them are flat out incorrect.
Humans often simply ignore this and go based on what we believe to be correct. A lot of people do it silently. Those who don't are often labeled know-it-alls.