"It's an accidental death but seems to be ruled suicide to spare the family's feelings."

Like CapriUni, I find this to be a sad statement - what does it say about our society if we consider having an unusual sexual fetish to be worse than suicidal depression?

"I can't imagine the horror of coming home and finding your son hanging in a closet nude and surrounded by porn. Geez!"

That would be horrible - but wouldn't it be even worse to find him hanging in a closet next to a note saying that his life was unbearable?

I consider a death from autoerotic asphyxiation to be the same kind of thing as a death from attempting to climb Mount Everest. Both are examples of people accepting extraordinary risks in pursuit of extraordinary thrills. It's unfortunate that when people play risky games - sexual or otherwise - they sometimes lose, but at least they died doing what they loved. It's nowhere near the tragedy of a person committing suicide.