I recently learned that voting on lemmy is not anonymous. Anyone can get information about who has upvoted and downvoted a post or comment.
In combination with your IP, this is a massive privacy (maybe even physical security) risk. Also, people can target you for your votes.
Sadly, this is something where I would prefer Reddit over Lemmy. Big tech scrapes data from both places anyways, at least Reddit is safe.
That is not true. Most votes irl are in fact public to the audience. Did you ever participate in a democratically organized group? Local council votes are usually done by raising hands. Votes in HOA meetings are usually done by raising hands. Your sports club deciding on a new executive and treasurer? Guess what. Raising hands.