Table 6. Example informative posts published by throwaway accounts and supportive users on r/SuicideWatch.

Throwaway User Post: “I wanted advice on how to push away any thought of offing myself that might be comforting. I enjoy the quality time I spend with myself, …. great friends. We are all alone at times … get over it …, its not even close to the problem. If you have advice on how to dismiss these sort of thoughts ….” “Basically, been constantly Delusional disorder … the past couple of months, … extremely detrimental to my mental health … especially bad … making it extremely difficult to reach out for help … stop talking with one of my good friends The Delusional disorder was so bad … situation makes me want to disappear because … it makes me feel isolated … no chance … things will get better.”

Predicted Suicide Risk: Suicide Ideation (True Label: Suicide Ideation)

Supportive User’s Post: “I know that you are worthy of many things. I am here to help. I just helped a guy who was thinking of killing himself. Hoping he hasnt and he is okay”

Predicted Suicide Risk: Supportive (True Label: Supportive)