Not directly related but I had a situation yesterday when someone on masto randomly dropped their s-thoughts on me. It was very hard to come across that by surprise and I was really lucky my wife was next to me to talk about it immediately.
I suppose we do need some resources in the fedi to guide people towards. Just the most basic things:
where to get help
who to call/talk to in dark moments
what to do instead of self harm or worse
what to say to a hotline/mental health provider in moments of crisis to not be sent away
counter bad experiences with mh providers or s-prevention providers
I know its everything but basic to the people in need but I think being able to listen or help on the spot is an additional thing, not the most important. The most important would be providing something if you get a whiff of it, you report (like reddit‘s send help feature) the person/posts and the moderators/admins can guide them towards a resource with q&a.