Wouldn’t it be easier to leave it as an option for each user on Lemmy?
If users want anonymity, let them have it. If they want to share their vote, let them do that. Forcing one option on others without the voice of the usually silent majority isn’t going to fix anything, it’s just going to scare some people away or start posts requesting it private again; or optional.
Not to mention, using this method you will quickly see how many users really wanted this option based on how many leave privacy enabled or disabled, instead of listening to a current vocal minority.