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.
Then don’t vote? Nobody is forcing you to interact with the content and it’s kind of hilarious you’d consider it a security/privacy violation.
And then you put the cherry on top by saying “reddit is safe.”