The difference being that stupid-as website was a signal users could filter. "I found that drinking gasoline is actually medicine on 4chan.org" is vastly different than "Gemini suggests drinking gasoline as medicine." One is the open internet being dodgy, the other is google with more resources than God.
Why on earth should you treat everything anybody says (which is basically the equivalent of saying "everything on the entire internet") with equal skepticism? That's so unrealistic, how could that ever make sense?