I'm very confused about the moderation on the question about a family member at risk of suicide. It's on hold, but there is no official comment or answer attached. I had some layperson training (Question, Persuade, Refer) and the letter clearly has warning signs that the poster has picked up on.
I've read several meta questions about what to do in this situation (about 'requires professional help' as a custom close reason, when OP needs professional help, questions about depressed/suicidal friends/colleagues, and a proposed (but closed) canonical answer).
I know this is a controversial topic, but I feel like it is the wrong answer to close for being "off-topic" without even linking to a suicide hotline or the proposed canonical answer, or noting that moderators are involved with the OP, or noting that anything has been done at all. (At the very least, it attracts others who have not read these meta-discussions to rush in with (potentially lower-quality) answers, because there is a yawning void and clear, desperate need.)
Should there be a comment or specific close reason issued when a question is on hold for suicide-related reasons?
EDIT: I have heard that suicide hotlines are happy to talk with people who want to help friends/family and people who are not immediately suicidal. Suicide.org says that the number one thing to do for a friend is to stay calm and call for help immediately. Therefore, I suggest that the answer should be a referral to the same suicide resources (and emergency services) as if the OP were directly experiencing the issue.
UPDATE 5/4/2018: For reference, here is an edited-to-be-generic version of the comments I left on that post, in case others want to adopt similar language. It probably won't all fit in one comment.
I'm so sorry you're going through this; if someone is considering suicide, it's not actually because of your actions. The issue is more than we can handle here: they need professional help (emergency services or an urgent psychological consultation). You also deserve support, and you can get some guidance calling a suicide hotline. If calling is not good, you can chat with them live online. We wish you the best.
Markdown to copy-and-paste:
I'm so sorry you're going through this; if someone is considering suicide, it's not actually because of your actions. The issue is more than we can handle here: they need professional help (emergency services or an urgent psychological consultation). You also deserve support, and you can get some guidance calling [a suicide hotline](http://suicide.org/international-suicide-hotlines.html). If calling is not good, you can [chat with them live online](http://suicidepreventionlifeline.org/GetHelp/LifelineChat.aspx). We wish you the best.
(The links above are to internationally available resources.)