Suicidal action posts have been banned for quite some time here... It's in our community guidelines (the ones every member has agreed to when they become a member here). These posts are those that describe specific methods, or a plan to commit suicide. We do not allow these anywhere in the community.

Suicidal thoughts posts are still okay, as long as they are accompanied with a trigger icon in the post. We prefer these posts to be made in the Depression forum. These posts are those that describe vague suicidal thoughts, with no talk of methods or a plan.

Please see this post from 2007 for more info on what's allowed and what's not: Our Suicidal Posting Policy & Suicide Resources

As for your request, I think everyone understands the rational reasons for it, and would agree that it's reasonable for you to want to know more before offering advice, if that's what you need in order to feel comfortable. I think that's perfectly okay for you. But it's not something we can ask all members to abide by, or believe it is needed for other members to reply.