Those numbers tell you nothing about the actual usefulness of the answer since that's entirely subjective. They only tell you a little about the community there, which is only useful if that matters to you (i.e if you're there to play the game).
However from the point of view of someone who admittedly wastes too much time on distractions like YC, I'm glad their design sucks since if they copied YC outright they would be 4x as likely to suck me in. In the same screen space YC manages to show me 20 articles whereas Stack Overflow only manages to fit in 5.