They are federated, so even if you can't see who up-voted what in the Lemmy UI, it is not really private and other Fediverse servers can see it. AFAIK they show up as favourites on Mastodon.
this post was submitted on 16 Jun 2023
6 points (100.0% liked)
Lemmy
12524 readers
1 users here now
Everything about Lemmy; bugs, gripes, praises, and advocacy.
For discussion about the lemmy.ml instance, go to !meta@lemmy.ml.
founded 5 years ago
MODERATORS
looking at profiles, not seeing anything that would show up/downvotes; just posts and comments.
No, they're not private at all, the federation shares anyone's activity so instances can be in sync, and they need to share everything.
For example looking at the logs of my instance I see this one
{
"id": "https://beehaw.org/activities/like/<uuid>",
"type": "Like",
"actor": "https://beehaw.org/u/<user>",
"object": "https://beehaw.org/comment/<id>",
"audience": "https://beehaw.org/c/<community>"
}
Edit: I misclicked and replayed to the comment instead of the post 😅