Given that instances can disable downvoting altogether, it led me to wondering…
I think lemmynsfw stopped people who weren’t subscribed to a community from voting in it (because their communities for gay people were getting a lot of downvotes from All). If that’s what you mean. I think it was a hack rather than a setting though (my info might be out of date)
Yeah, that’s along the lines of what I’m asking about, albeit instead of a subscription check more like, I think, however the instances disabling/removing downvoting have done so, but adjusting the scope strictly to the Local or All views.
Another approach to addressing outsider/passive voting behaviors.
I don’t think that would be possible. The API is only sending “post_id” and “score” for votes, so the backend has no info on what feed a user used to send it. An instance could modify their official frontend to hide the ability to downvote from Local and All but they couldn’t do anything about people using different frontends (e.g. all the various phone apps)