There seems to be a wide range of functionality represented here so I think it would be fine in that respect. The posts by members in crisis do stand out.
There is a very wide range of diagnoses represented here. Some issues are situational and will be resolved and never return. Some are chronic. Maybe most are chronic as jimi said.
I think I can understand your concern there. A new member may think that people here make mental illness a way of life. In all fairness, some do.
We see many people here with a common observation about dealing with any mental illness or condition: most people in their lives don't understand. I think it is useful to be able to talk with people who know what it feels like to have a mental illness and understand what they are dealing with.
And finally... the road ahead probably is a rough one
You asked some good questions.