Against
This information is already public. Something like kbin or mbin which already shows votes could theoretically be used to show them for any federated instances anyway. It's pointless trying to obscure this information as it's not actually protected in a technical manor. If you didn't want this information public you chose the wrong platform.
Man hackers would love you. Memory vulnerabilities are still one of if not the main cause of vulnerabilities in unsafe languages. Yes this even applies to large projects ran by experienced and skilled people like the Linux kernel. Stop thinking your the exception, because I guarantee you aren't but even if you were you can't read all of the code in the world in your lifetime. Nor can you write all the code in the world.