I've been talking with a moderator in the Teacher's Lounge and I can't say there's been a change in policy. The question you flagged and I answered is not the traditional suicide question about the poster themselves, but a question asked about how to help someone else. I think the canonical answer is that those of us without training need to guide people to those who do. So I edited the question to be slightly more general and more focused on the "how do I help" aspect.
It's a bit uncomfortable for me. I have an answer on Meta Christianity that suggests we close personal advice questions and direct people in the comments to appropriate advisors. But this entire site is to some degree about personal advice. I think my answer could be helpful, but I'd like to see what others have to say. In particular, I'd like to know if my answer (and by extension, the process CMs use) is as good as it can be.
But I'm not going to say the question should remain open or not be deleted; that's up to the community and your moderator representatives. Certainly, I don't have to deal with any potential problems it might cause as much as you all will.