Hanging/decapitation

[Kirov]

Why is using a longer rope not more common when attempting to hang yourself? Because wouldn't it guarantee that you'd be decapitated and therefore die instantly as supposed to risking being slowly suffocated if your rope or the drop are too short?

 

[locked*n*loaded]

Because not everyone has access to a place that will provide a great enough height. And I'm not sure what you mean by "decapitation", but if you mean the head entirely becoming separated from the body, that's not going to happen doing a drop hanging. You may break your neck, but the head is going to remain attached.

 

[Kirov]

Because not everyone has access to a place that will provide a great enough height. And I'm not sure what you mean by "decapitation", but if you mean the head entirely becoming separated from the body, that's not going to happen doing a drop hanging. You may break your neck, but the head is going to remain attached.

https://www.sciencedirect.com/science/article/abs/pii/S0379073899001401

Decapitation is possible.

 

[locked*n*loaded]

https://www.sciencedirect.com/science/article/abs/pii/S0379073899001401

Decapitation is possible.

From your link:

"Complete decapitation can occur in rare cases under extreme conditions (heavy body weight, inelastic and/or thin rope material, fall from a great height)".

I wouldn't count on it if I were you.