The show clearly wasn't intended to help suicidal people or "start a conversation" as the showrunners claim. It was created because suicide has shock value and they knew it is going to attract attention. It seems that as the show goes on, they just throw all topics with shock value into the blender: extreme bullying, racism, homophobia, sexual assault, drugs, domestic violence, abortion, immigrant issues, homelessness and even school shootings - everything goes. And the picture they paint is way too one-sided and oversimplified to "start a conversation".
Season 1 was still decent because it was based on a book, although I do believe it's approach to the topic suicide is somewhat shallow and careless and Hanna's rapid descent is not portrayed in a very realistic way. But the following seasons were a complete mess.