In the official browser app, and any of the mobile apps that I have examined so far, it seems that you are only ever able to see the total number of likes, or dislikes that a post has, and you are not able to see exactly who upvoted, or downvoted the post. Does ActivityPub, or Lemmy track this information at all, or does it just keep a tally?
Upvoting one's own comment is default behaviour on Lemmy. When a user makes a post, or comment on Lemmy, it gets automatically upvoted by that user.
Mind kbin shows upvotes from other instance and doesn’t show downvotes from other instances. Just the ones from kbin itself.
On kbin the votes start at 0 for both up and downvotes. If I don’t manually vote on my comment it will show me 0 votes after posting. I have no idea how it appears on other instances.
On Kbin, your comment has 0 upvotes and 0 downvotes (at the time of writing this), but when I view your comment from the original instance, it shows a score of 1.
So I guess lemmy.ml defaults comments at 1 point.
EDIT: Immediately refreshed the original instance, and I'm also at 1 point within 3 seconds of posting. So yeah, that seems to just be the default score. And upvoting my own comment didn't change the score on lemmy.ml. But also, I upvoted your comment, and you're still at 1 point on lemmy.ml. So I dunno if that's a sync issue, or if "unscored" and "1 upvote" both equal "1" on the original instance.
I upvoted my previous comment and it now shows 2 upvotes for me. When I go to the original instance it only shows 1 upvote.
I see 2 upvotes and 0 downvotes to your earlier comment on Kbin, but still only +1 on the original instance.