Click your username at the upper right:
Turn on "showdead": showdead: yes. (defaults to "no")
There are a number of dead posts in this thread. I'd post some here (some of which don't appear to violate any HN guidelines, I'll note), but probably those same moderators would kill this one, too.
[Flagged] means it was killed by a moderator. Those are more rare. I don't agree with everything that is flagged but I think HN has a great moderation policy overall. Often when posts are flagged, the moderator responds explaining why.
I have had no shortage of comments flagged by a certain group of people that like their “alternate facts” and share their HN posts to discord for brigading / mass down voting anyone that calls their lies out.
It only takes 2-3 quick user flags for your comment to be permanently, automatically flagged, and only a couple of those to get comment restricted.