Every single one of your upvotes on lemmy is already public due to how the protocol works, it’s just currently obscured by a bit of work to get them (have to run your own instance, assuming there already isn’t some online tool to easily look them up)
Making them publicly and easily visible would only remove the illusion of privacy we currently have, not actually make your upvote logs less secured in any way
That’s it young man, I’m revoking your DNA privileges