Earlier quoted context omitted.
He doesn't make even a single throwaway comment on the process of throwing black or white potsherds into an urn to decide whether someone shall be banned from the city of Athens, i.e. the original meaning of ostracism? Because AFAICS that would be pretty literally (actual literally-literally) about downvote etiquette.
No, that is very much not actually literally-literally.
How not? Voting to run you out of town must be ("literally") the ultimate downvote, isn't it?