Why did LW originally make a difference to your suicidality?
It changed the way I thought about everything. I had to reanalyze every belief I held and was far too busy doing that to be particularly sad.
More importantly though, it gave me hope. The general air of optimism and confidence and defiance made me feel proud to be a part of it. Before finding this place, the thing that bothered me most about life was that it was absolutely certain to end. After reading the Methods of Rationality, I realized that I didn't have to go down without a fight so long as I had even a chance of winning.
Besides all that, Lesswrong ...
If it's worth saying, but not worth its own post, even in Discussion, it goes here.