A post can be [flagged] and [dead] but how?

Question

A post I was looking at got [flagged] apparently at some point while I was reading the article, and then was marked [dead] (he's dead Jim!) by the time I came back to comment on it.Totally understand that the site needs moderation and all, but when I came to this page (the submission page) I didn't see any link to rules or guidelines. Though now that I look, they are linked on the homepage.Still wondering what those tags mean and how they are applied. Is there any transparency in HN moderation?

raihansaputra · Accepted Answer

AFAIK any user can flag a post/comment, and above a certain flag threshold the item will displayed as [dead]. A user with high point/karma (above 500 i think) can [vouch] for a [dead] item, but the item can be flagged to [dead] again, in which case it can't be vouched for.

rvz · Answer

When enough users flag the post in question or a moderator does it themselves.I can bet that ironically, this post (and mine) will end up [flagged][dead].Please prove me wrong here.