You can tell if something was auto-killed or flag-killed by if it is [flagged][dead] or just [dead]. In this case, Animats' comment was not [flagged] which sugg

You can tell if something was auto-killed or flag-killed by if it is [flagged][dead] or just [dead]. In this case, Animats' comment was not [flagged] which suggests either moderator action (unlikely, it was instant I saw it at 0 minutes and it was dead), a banned account (not in this case, check his history), or a spam or content filter.