Most people seem to think so. I'm not going to bother defending the point here (all I'm trying to do is establish identity) but possible reasons include the claim that humans terminally value knowing the truth and the point that humans share a morality, so providing them with information gives them as good a chance as you of making the right choice based on the evidence (unless you're superintelligent or they're mentally subnormal, but what if it's the opposite?)