Yes. Online forums are a trigger for suicide. Any online forum
Protecting Teens from the Spread of Suicide
Although we don’t usually think of suicide as contagious, one of the strongest predictors of suicide in youth is the suicide or suicide attempt of a friend or family member (Juhnke, Granello, & Haag-Granello, 2011; Mayer, 2013). Teens exposed to suicide are at significantly higher risk of suicide over the next two years (Mayer, 2013). Exposure to suicide in online forums (Dunlop, More, & Romer, 2011) and through YouTube videos about suicide fuels self-destructive fantasy and also increases suicide risk.
Recommendations include refraining from giving details or images of the method or place where the victim was found (Centers for Disease Control and Prevention, 1994; Sudak & Sudak, 2005). Care should be taken not to focus on the immediate external precipitant as the cause of the suicide (e.g., a break-up) or other situations to which teens can easily relate (Centers for Disease Control and Prevention, 1994; Mayer, 2013). Doing so increases identification with the victim and can inadvertently convey that suicide could also be a solution to their problems. Another danger is allowing memorializing to go too far, feeding into teen idealization of death and suicide (Centers for Disease Control and Prevention, 1994; Sudak & Sudak, 2005).
Where do youth learn about suicides on the Internet, and what influence does this have on suicidal ideation?
While traditional sources of information about suicide were most often cited (79% were from friends and family or newspapers), online sources were also quite common (59%). Social networking sites were frequently cited as sources, but these reports were not linked to increases in ideation. However, online discussion forums [any forum] were both cited as sources and associated with increases in ideation.
Also the internet is sometimes used by people who are already planning a suicide to help them learn to commit suicide more effectively-more lethally. Any question about the methods of suicide would be of interest to this group.
Parasuicide online: Can suicide websites trigger suicidal behaviour in predisposed adolescents?
The present case report describes a 17-year-old female who explicitly visited suicide web forums, where she researched reliable suicide methods, contacted an anonymous user and purchased substances for the implementation of suicide.
Moderators of these websites specifically are avoiding situations such as this.
I was wrong in the comments. These studies have been replicated many times. See this.
Although this research has been centered on teen suicide, it is likely also an important factor for older age groups who have strong engagement with the internet as well.