Strongly agree. Keeping ourselves humble and remembering that nobody is infallible is important.
However, taking it to the extremes this article suggests (“Everyone is stupid”) is exactly the mindset that leads people to ignore experts, discount research, and promote their own feelings above the science.
The mindset is great for an ego boost because it’s an easy way to take everyone else down a notch and make everyone feel more or less equal. But when it comes to individual topics, everyone is definitely not equally informed. Pretending they are is a mistake.
The real skill is learning to identify who to trust and who to dismiss. It’s easy to mistake confidence and slick presentation or even angry contrarianism for being right these days, but learning how to look past that is very important. Putting blinders on and telling yourself that “everyone is stupid” is not a good way to do it.