Agreement with my own point of view, and also posts that are clearly contributing to the overall discussion. For down votes: posts that are clearly wrong and/or

Agreement with my own point of view, and also posts that are clearly contributing to the overall discussion. For down votes: posts that are clearly wrong and/or nonconstructive. Also to spite people I don't like. Oh, and I upvote submissions that I like, and also submissions that I want to see more discussion around, even though I might not like the submission.