This is based on the discussion on this answer.
Summary: A user called Microsoft brain dead (it has since been edited out) in an otherwise very good answer to the question (it's even the top voted answer as of now.) People downvoted the answer for this wrong behavior and not for the answer's point.
My take: This is wrong, I think downvotes should not be used to punish bad behavior, but to reward or punish the helpfulness of the answers, not their political correctness. There are other means to signal/punish this kind of answers (comments/flags/editing by users of high rep).
Even if the using of downvotes as a punishment measure shows there's no intermediate measure, it also shows that the system works, because it worked out well and in a reasonable amount of time.
What's your take? Are punishing downvotes valid? Do we need an intermediate step between flags and commenting to avoid this misuse of downvoting?
EDIT: To be absolutely clear, I totally agree that politically incorrect people should get coerced into good behavior, I just wonder about the best way to do so.
We have a tie so far (two want to use downvotes as a means and two don't).