Great Idea!
At least you are considering, because it'll let me correctly vote saves where i voted mistakenly
Yeah, but what if you vote mistakenly down when you actually wanted to vote UP?
That could maybe work, but what if for example, a moth lands on your touchscreen? The natural instinct would likely be to get it off, so you would likely do it, but then you would accidentally push downvote if the moth was on it or if you moved the fingers awkwardly. The moth could also be able to trigger the touchscreen, so that think twice doesn't always work.
Yeah, or what if your little brother/sister'd come and downvote/upvote on random saves?
well, i hope most people are smart enough to try not to touch a moths wings, and thus blow on it to get rid of it.