Two of the people I've known in my life have died this way[1]. There are many ways to die, and we all die eventually, but dying from intentionally inflicted asphyxiation has always struck me as exceptionally stupid and tragic.

I understand that people place a different value on their life, and things like skydiving are thrilling and life changing with a chance of death if something goes wrong. I don't always share the same risk/reward profile that is neccesary for someone to asphyxiate for thrills.

[1] One as a child doing this using a plastic bag and one as an adult presumably practicing the erotic version.