When you click on a single "Yes / No" link, your script is disabling
every feedback link on the page. I suspect you only want to disable the links for the specific item you've clicked on.
Try something like this:
$(".review-feedbackLink").on("click", function () {
if ($(this).closest("a").is("[disabled]")){ return false; }
$(this).addClass("selected");
$(this).parent().after("<span class='thanks'> Thanks for your vote! </span>");
$(this)
.closest(".review-feedbackQuestion")
.find(".review-feedbackLink")
.closest("a")
.attr("disabled", "disabled");
});