The implementation feels a bit rushed. Here are my suggestions: - Don't allow a user to rate his own posts. - Don't allow a user to issue contradicting votes

The implementation feels a bit rushed. Here are my suggestions: - Don't allow a user to rate his own posts. - Don't allow a user to issue contradicting votes like +1 and -1 at the same time. - Use image emoji like everywhere else on the site for compatibilty.