Another person's suicide doesn't cause people who are left behind as much pain as the left behind person's own feelings that if only they had done something differently...

I wouldn't feel bad if a person with a terminal illness made a conscious decision to end their lives.

On the other hand, those suffering with the pain of healable illness or injury should be helped. If they still commit suicide, they did so as a result their reactions to their illness or injury, and if there is an afterlife, the wrongnesses of a soul hosted by a physical brain and body aren't going to follow them. And a compassionate God would not punish them further. I think that those here who like to think of suicides burning in Hell are those who may believe they're going to get a consolation prize for just putting up with life. They've missed the point too.

Reincarnation? Speculation is interesting, but I don't know. If life is a road, the future is hidden in mist that only parts when you take another step. Neither you nor I have ever been all the way to the end. You may be sure of what's up there, but I'll wait to see.