I sometimes hit down vote semi-automatically, but then force myself to really look at what I just voted on, and normally I end up removing the vote. I try to on

I sometimes hit down vote semi-automatically, but then force myself to really look at what I just voted on, and normally I end up removing the vote. I try to only downvote trash comments, not just things I disagree with. When I see something that could be interpreted as typical nasty internet vitriol (eg blatant racism, sexism, etc) I will downvote it. If it's kinda borderline and I'm not sure if there's ill intent, then I'll look at the commenter's post history. If it's 50% ranting about black people, then they get downvoted, otherwise there's the benefit of the doubt. I also keep showdead on, so a lot of my upvoted comments are "rescue votes", from when I see a dead comment that I don't think should be dead. I also make a point of periodically browsing new, and trying to upvote two or three interesting articles that have no votes.