Edit: obligatory explanation (thanks mods for squaring me away)…
What you see via the UI isn’t “all that exists”. Unlike Reddit, where everything is a black box, there are a lot more eyeballs who can see “under the hood”. Any instance admin, proper or rogue, gets a ton of information that users won’t normally see. The attached example demonstrates that while users will only see upvote/downvote tallies, admins can see who actually performed those actions.
Edit: To clarify, not just YOUR instance admin gets this info. This is ANY instance admin across the Fediverse.
Basically what I meant is some way for the user to see who up/down voted what. Maybe hovering the up/down vote button shows a field you can click on that say votes or something and that then redirects you to a different page that shows who upvoted and downvoted that specific post/comment. The exact details don’t really matter. My point was basically that if something is accessible but only via hidden means that are not obvious to the end-user, they may wrongly assume that information is private. So by making it easily accessible to end-user, you also clearly indicate that that information is publicly accessible ^^