there are other reasons too

That will help, but that's also not a magical cure. Depression is much more complicated than people want to make it.

Two signs have appeared on a bridge by mine saying 'thank you for saving our sons life' it made me tear up, I hope the saver sees it

Posting the Suicide Hotline number every time someone in your community commits suicide is like posting the number for 911 any time something bad happens.
Like wow thanks you're a real life saver