If the Russians hacked the emails, that action is bad. We can condemn that while still apprising the people of the truth. Of course it would be better to have the whole truth. I wish we could knkw just how awful are both candidates. But do we ignore the information that tells us just how corrupt one of the candidates is because of the source? I think the only way one could say yes to that question is from buthurt over the outcome.
This is not a court of law where rules for obtaining and handling of evidence dictates whether the information may be considered in the matter at hand. If the Russians are behind this, they should be condemned for it and whatever diplomatic actions that are appropriate should be applied. But I'm just not ready to "go sic 'em" just because some assertions (mostly from the side that lost) have been made.