As you all know, when you reach 1k rep, you can "split" the votes and see the number of upvotes and downvotes. Would it be possible to add a setting to auto-split, and clicking results in the total?
Showing upvote/downvote counts by default was declined for performance reasons (performing twice the amount of database queries).
To quote Jeff Atwood's answer here:
The total vote count (score) is denormalized, but the individual up/down vote counts are not.
So to display it on every post would incur 2 vote table queries * number of visible questions / answers. Our DB is fast, but the vote table is pretty massive, and not doing a query is always faster than doing it.
If you really want/need this, a userscript has been shared here which auto-clicks the vote counts once each second to get the totals.