In the event that a question is actually closed, who voted for that will become public record. However, at the stage where it is still open there is nothing that should be done based on that information. Showing it would just cause more drama than necessary and bias other voters, whether for or against based on the names they recognize voting. Like it or not, seeing a name you trust or agree with would tend to garner your vote and names you don't trust or tend to agree with would tend to garner no action — both apart from the merits of the post.
VTC should be placed based on the merits of the question and each reviewer should analyze it themselves. In the event there is some specific case to be made, voters can make it in comments. Notably VTC as duplicate outs the first voter because it auto generates a comment. In these cases there is additional material to be reviewed beyond just the question when considering your vote.