A "problem/opportunity/potential" I have observed by introspection: An upvote could either mean that the answer is correct or helpful. Well there are other meanings but those seem most important to SE.
Users with high reputation could be more likely to mean correct, while users with less reputation could be more likely to mean helpful. This could be exploited to extract some interesting metrics for a question. The ratio and distribution of high vs low reputation voters.
A high ratio of high reputation votes is seemingly technically correct (trustworthy) while a high ratio of low reputation votes is seemingly easy to understand. This could provide good feedback to the reader as well as the writer.
Another interpretation is that the distribution tells what segment of SE users it is useful to.
(Ideas like this have possibly gone around for ages; I apologise if so.)