Reply #1: I don't believe it is "wrong," but I will attempt to answer your question.

[Fenris]

First off, a great number of people who view suicide as wrong either do so out of firsthand experience and/or religious aversion.

My general impression from talking to friends, aquaintances, and families of those who have chosen to take their own lives is that in their view, suicide not only uneccessarily ends a life, but also causes unwarranted grief upon those close to the deceased. Yes, in this person's mind, suicide alleviates all of his or her problems by ending his or her existence; but this fails to take into account the problems that suicide creates for those around he or she. Thus, suicide is a selfish act, because it solves a problem for one person at the cost of creating other problems for a lot of people.

This has been the guiding idea that has prevented me from taking my own life: there are too many people who would suffer too much as a result of my death. And I have considered this often, seeing as I have severe emotional problems. It was never because I thought suicide was wrong. It was because I thought it would hurt the people I cared about far too much.