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.
With the caveat that there are certainly state actors running honeypot instances
You say that like there are not state actors on Reddit. In fact, that canary died a decade or more ago on Reddit. There are astroturfing campaigns from governments all over reddit literally daily.
No, I say that in the sense that you should speak like the feds are listening, because they are.