The best option for people who are suicidal, has been, and always will be, to seek offline support immediately - usually by talking to a friend or family member, calling 911, calling your therapist/doctor, or calling a crisis line.

For instance, the Community Team has no special training to intervene in a suicidal situation, especially through an online medium. There is also the fine line between suicidal ideation and suicidal intent. The former is allowed here (as long as the trigger icon is used) and the latter is not.

One resource that PsychCentral has is this: http://psychcentral.com/helpme.htm