Comment by dang

Posts don't get deleted on HN, except on rare occasions when the author asks us to delete something (and usually then only if they didn't get replies).

Posts do get flagged and/or killed, whether by user flags, software, or mods, but you can always see all of those if you turn 'showdead' on in your profile. This is in the FAQ: https://news.ycombinator.com/newsfaq.html.

If you notice a post getting flagged and/or killed that shouldn't have been, you can let us know and we'll take a look. You can also use the 'vouch' feature, also described in https://news.ycombinator.com/newsfaq.html.