alt Hacker NewsThis is a green account that got auto-killed: https://news.ycombinator.com/item?id=48304852
This is a green account where someone used the "flag" button to kill it: https://news.ycombinator.com/item?id=48262928
Note how the former only says [dead] while the latter is [flagged] [dead].
The spam filter does both. You can verify for yourself that flagging a comment most of the time is not enough to kill it.