Dating markets with low signal-to-noise ratios, in the ice cream analogy, is like an ice cream shop that only offers a giant ice cream cone with no fewer than 100 scoops, and you only get to choose the visible scoop on top, the other scoops are completely random. So you try one, and you like that the first scoop is raspberry, but then you discover that the second scoop is Bertie-Bott's-Every-Flavor-Beans-Earwax flavored, and you throw the whole thing out in disgust. Next week, you try again, savor the raspberry again, are pleasantly delighted to find out that the second scoop is a mild lemon-meringue, and then hit icky artificial-medicinal-cherry on the third. So you throw it out again.

When you go back to the ice cream shop to demand some kind of control over what kind of ice cream flavors end up in your cone, the shop-owner apologizes and reveals that the reason why the other flavors are at random is because he doesn't actually scoop the ice cream, the giant ice cream cones actually arrive like that from the factory, and although 70% of the cones do come with some claims about which flavors are inside, 60% of those claims turn out to be false, so nobody pays attention to the label, and anyway here's another giant cone, maybe this one will turn out great and really be "your kind" of cone.