Downvoted your comment just to test, they do get federated, though I couldn’t see it in your kbin instance cause I’m not logged on. But on sopuli.xyz (top level comment instance) and lemmy.world (post instance), your comment had 0. They’re created as “Dislike” activities in AP which is not exactly an agreed upon standard but other Lemmy instances recognise it.
Downvoted your comment just to test, they do get federated, though I couldn’t see it in your kbin instance cause I’m not logged on. But on sopuli.xyz (top level comment instance) and lemmy.world (post instance), your comment had 0. They’re created as “Dislike” activities in AP which is not exactly an agreed upon standard but other Lemmy instances recognise it.