I was think about how some people complained that on other websites, yes that one again, that some articles were censored or that specific content was being pushed to the front page. If users were able to see who upvoted or downvoted something I think it would help the community in a good couple of ways.
1- People would be able to see who upvoted specific content, did a bunch of new accounts all vote on a thread to push it up or down.
2- People would be more concious of how they vote and (Maybe I am being optimistic) it would at least lead to a better understanding of the person you are discussing something with. Which would allow people to have a better conversation or at least know not to put too much effort in to debating something.