(edit: Sorry, this is pretty random. I still wanted to share my view.)
For me it looks like pretty much everyone was suicidal in the youth/adolescence. It may be a horrible coincidence, but really I have never ever known a person that didn't feel suicidal at least once. No, I am not talking about the "Oh god, I love someone, I want to die sort." I knew people who killed themselves, so I guess I am pretty good at knowing the difference.
Don't know why but these folks often talk to me. Maybe it's because I don't get too emotional about it and they know I won't tell anybody. I believe in the right of suicide, even for mentally ill persons. I mean if it's chronically then it doesn't make sense. It's probably a lot harder then another kind of illness. Something I never understood was the "(s)he is going to die anyway" argument. Everybody is going to die in the end. You also don't know about the when or how. Of course it can be more likely to be sooner and agonizing, but you can't know for sure.
On the other hand I consider it to be a stupid idea to ask some kind of doctor about it. A doctor, in my opinion should be someone who keeps people alive and not someone who decides about whether someone dies. I consider this to be a major problem. And when you ask about the "quality of life" I think nobody else should answer that question. If I am not feeling good it doesn't when a doctor or whoever says something different.
Still, if anyone out there feels suicidal then get help. There are a lot of people who are _glad_ to help and won't treat you in a generic way. I talked to a lot of person and never thought about something like "what's the best way to convince someone to stay alive". Also, yeah there are _many_ stupid psychologists - and I mean it like that. They often see stuff that I consider to be a serious hallucination. I know about psychologists who think everyone looking outward of a window wants to jump down. A schoolmate and back then good friend of mine had been sent to a psychologist for no reason at all (well, he had very, very strange parents) and was considered to be mentally ill, because he didn't know what he should talk about with the psychologist. I know about tons of these cases, like people who are mentally ill, because they washed their stuff when it was dirty.
I think this is a big problem. Suicidal people always think that people who could help suck, because some psychologists see psychotic people everywhere. Well, maybe it is like that. As I wrote everyone I ever knew (of course I am talking about people I knew pretty well) were suicidal at some point. Still I think a lot of mental illnesses should be considered character traits. For example there was a time when everything but straight sexuality was considered a mental illness, even sex toys and various other things. Also a lot of artists and philosopher can possibly be considered to be insane.
My personal opinion is that people who are suicidal usually have a problem to accept who they. In some situations it is more like accepting the circumstances. Even if they suck right now or are hurtful this doesn't mean that it will remain like that. It can take years until one feels better again, but it usually is worth waiting and accepting that can make you feel way better. Just don't take everything too serious and think positive. Mind > Matter ;)