I agree, I think separate tallies for up and down might be a really great thing.
On that other place, while lots of downvoting is “obvious”, a lot is really odd, like someone posting a technically correct, documentable, verified answer, and it gets downvoted? Also black-supportive or LGBTQI+ stuff gets downvoted at times. 9000 ups and 9000 downs at the same time would be umm interesting.