Anyone can see flagkilled comments, or any [dead] comments, by turning 'showdead' on in their profile.
Just be warned that most of what you'll see is comments by banned users. Occasionally we get emails from people who don't realize that and somehow assume that moderators are condoning the worst dreck that appears there.
> Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith.
Ironically, by assuming bad faith and a condescending tone in the comment you responded to, you've made a legitimately condescending comment.