In my opinion this setting should be set by the use. Whether they want their votes to be shown to public. If they deny Lemmy would just show "upvoted by anon" or something.

Allow it to be configurable by server or community. Some communities may benefit from allowing the public or mods to see votes, while others would be hurt by it.

Having seen the complete absence of mayhem on kbin caused by vote visibility, the absolute and utter nothing that will come of this decision leads me to say yeah, sure. That said, I’d prefer improved mod tools over this, but option c isn’t listed.

There are merits for it and against it. My biggest concerns would be privacy regarding data scrapers .

Regarding poor behavior, I really think that ultimately comes down to moderation on the platform. I've only had a few poor experiences but I am also someone who sometimes sees certain threads as dumpster fires and refrains from joining in or refrains from responding when I feel there isn't any form of discussion or chatter to be had. I can understand that it likely happens more often than not but I also believe that moderation is the only reasonable way of curbing it. Moderation teams have to make it clear that the behavior is not welcome and that it will be dealt with.