I would discourage you from doing that. Please think of votes less a way to reward people or give them points, and more as a way to indicate correct/ useful posts to people who visit in the future.
Voting bad posts gives a false message, both to the people reading the thread and to the person who made the post. If the post is bad, we want them to try harder.
However, if you want to do this in spite of the above, you're welcome. You can do whatever you like with your votes, as long as it's not targeted toward individual people. As sumwun mentioned, it's unreasonable for us to go chasing people about who they voted all the time. You would all hate us.