as an uploader, i find it very irritating when people vote my uploads down without giving any reason.
i can understand some don't like my work but i have no idea how i could improve it.
i think it would be a good idea to remind people about commenting every time they vote anything bad.
an extreme (perhaps too extreme?) version would be not to let people vote down without providing a comment.
ps. please, don't vote this upload down without giving a reason...