Using "signals" is always a risk because you might very well be cutting yourself off from a talented pool of people that will be available to your competitors w

Using "signals" is always a risk because you might very well be cutting yourself off from a talented pool of people that will be available to your competitors who aren't so choosy. This is exactly why BigCo's that use resume buzzword bingo to do all their hiring are so tragically bad at finding anything better than mediocre talent. The question is whether a particular signal, on the balance, produces better results for less effort than simply vetting the candidates the old-fashioned way.