To be fair Stack Overflow's voting system generally appears to work well for selecting the best answer. Reddit on the other hand seems to dish out fairly crap

To be fair Stack Overflow's voting system generally appears to work well for selecting the best answer. Reddit on the other hand seems to dish out fairly crap advice on a regular basis for the subs I subscribe to (not that all Reddit advice is bad, just that bad answers don't get the same down voting that SO answers do).