I hear you, but what is the endgame with this? Does it lead to a better HN?
Lobste.rs actually exposes even less and doesn't provide an API because the users haven't consented to such intrusions.
Personally, I don't want to be able to review every vote for or against my HN account. It wouldn't be productive and would likely lead to me not wanting to be here at all. It'd be like having a super strong mirror and then looking at your skin and being confronted with too much information about the reality of how nasty looking and imperfect being human is. Basically not a healthy pastime.
FWIW, if you're truly passionate about this, it's not difficult to setup your own site with the lobste.rs open-source code. Maybe there is a whole subset of like-minded folks.
The lobste.rs origin story may also be of interest to you. The TL;DR is jcs was being singled out and abused by pg on HN. Thankfully there is no evidence dang has (or would ever) do this, it was certainly toxic behavior on Paul's part. Being a moderator isn't for everyone, it's a Certain Thing, and net-positive mods who avoid power tripping are truly rare gems on the Internet. Open information would guarantee such abuses couldn't happen in the dark, but at what cost to the best aspects enabled by the HN ecosystem?
References:
https://news.ycombinator.com/item?id=4452568
https://news.ycombinator.com/item?id=32112665