My flag "It's no longer needed" was accepted for four comments under this question: Safeness of changing proto field number
After deletion, when I revisited the post, it showed "Show 2 more comments" under the question's two comments. But there were only two comments in total to be shown!
Such a link might be useful for the moderators, who can still view the deleted comments. However, for the normal users it shouldn't be shown, as it doesn't make any sense.