They are actually only good if the members of that crowd have some sort of empirical experience with the problem they are being asked to solve. Guess the number of coins in a jar? People know coins and have experience packing things in a limited volume to the crowd has a hope of being wise. Guess an obscure materials science and physics result? Not a chance, the crowd is worthless.
> You are severely underestimating how good vibes from a lot of people are at giving good estimates
Anyone else remembers how people were selling and buying doge coin at 70 cents based on good vibes? No? Ok.
There has to be _some_ level of knowledge to base it off though, this is just hope.