Users aren't in agreement of the needed karma threshold for the downvote button to appear on submissions, though. There seems to be a way through URL-params, a

Users aren't in agreement of the needed karma threshold for the downvote button to appear on submissions, though. There seems to be a way through URL-params, as mentioned in another comment[0], but I'd consider that method an auth-related bug, rather than an existing downvote feature for submissions. [0]: https://news.ycombinator.com/item?id=48107572 https://news.ycombinator.com/item?id=48107572