The problem with the non experts is that people will deem somebody and expert simply if they have a large following. That's a huge problem in the US. People look to famous people to be experts or try and turn experts into celebrities...and quite often those are the ones whose opinions don't need to be elevated.
That's my issue with people like Rogan and his ilk. I remember an article
@ChicagoFigure posted about why natural immunity isn't being pushed more and the person said it's because this country doesn't do well with nuance and it would result in a bunch of people intentionally trying to get infected. When Rogan had Sanjay Gupta on this fool with his millions of listeners says people should get vaccinated then go try and get infected with Covid intentionally. And people will actually listen to that shit as good advice simply because he has a popular podcast