I think you're missing all the failures that aren't reported.
Also, how many are full suspensions and how many are partials? If there are a lot of partials, then there are like many that failed, so you're not getting the whole picture.
Also, I think on this forum it's impossible to know how many succeed because they don't report attempting, they just attempt and succeed. There's no way to know what percentage of folks have no problem accessing their cartoids.
Personally, I know I haven't "overthought" anything. I've tested. I've tried several different positions and no matter what, it is my jugulars that get constricted. Unless I'm doing full hanging and can't escape, as long as it's super uncomfortable like it was when I tried position 3 from the illustration at the beginning of the hanging megathread, I'm going to escape. I've also tried tourniquet and night night. If I can't do it, I can't do it.
On a side note, I've read Five Final Acts and the tourniquet method seems so easy. The author talks about the seminars they hold in which people practice tourniquet. I wonder how many he doesn't talk about who go to those seminars and no matter how much they try, they can't find the sweet spot either. I wonder if it's a lie of omission. It's no wonder people feel inadequate or wonder if they're overthinking if they see so many success by children, old people, and celebrities -- they don't know how many try and simply don't have the physiology to do it.
Also, their bodies may be less resistant to some methods. For example, usually in CO poisoning accidents, children use to be the first ones to die.
Couldn't that be because their bodies are smaller and so will succumb more quickly to the effects?