My position on removing our dislikes here on Hexbear was because of research papers showing it objectively caused negative outcomes.
I can't find the paper for this but I am 100% certain that this topic has been researched and that I recall public "likes" were healthier for user behaviour while public dislikes caused major problems.
I would be for public upvotes, I would recommend removing downvotes entirely as per the research, but in lieu of that and because Lemmy's mission is generally to be a reddit-clone I'd say keep the dislikes secret. Their existence is a negative to begin with, making them public is only going to spawn a huge number of confrontations as people confront the first person that downvoted them and demand a reason. It'll be a mess.
My position remains with the research on these topics, the research is good, a huge number of people here poo-poo'd the idea of removing downvotes but came around, trust the research.
Pinging this thread @dessalines@lemmy.ml way as you couldn't pay me to make a github account just to say this.