It's already too late, but I wished Lemmy had made it impossible to upvote your own post, or made them start at -1 so one upvote puts it on 0. Granted, that's a petpeeve.
Well, it wouldn't "start at -1" in my example. I was either suggesting making the UI block self-voting and start at 0, or have auto-self-voting just like now, but with it starting at -1. Both would result in a default of 0. I hope I made it clearer.