There's always going to be, subjectively, a lot of overlap between those two categories in looking at the comments of others. I know I'm not a troll, so obviou

There's always going to be, subjectively, a lot of overlap between those two categories in looking at the comments of others. I know I'm not a troll, so obviously if someone downvotes me it's because they disagree and therefore unfair. But maybe not from their perspective. You can also downvote and reply; I don't know how common that is. But given the number of people who say they don't know why they are downvoted, it seems to me like a reasonable thing to do.