Death types

I agree that it’s not the type of death that matters, but as pvawter wrote, our relationship with Jesus Christ. However, I also only read the short excerpt that was available, but I think we have at least one example in the NT that shows the desire for death not always entirely a wrong desire:

Philippians 1:21-25:

“For to me to live is Christ, and to die is gain. But if I live in the flesh, this is the fruit of my labour: yet what I shall choose I wot not. For I am in a strait betwixt two, having a desire to depart, and to be with Christ; which is far better: Nevertheless to abide in the flesh is more needful for you. And having this confidence, I know that I shall abide and continue with you all for your furtherance and joy of faith;”

Paul clearly wants to die, to be with Christ, but recognizes that his remaining is more needful for those to whom he ministers. While it’s not an exact match, this is closest to the “death ignorers” category in the excerpt. He truly sees this life as only the beginning and is ready to move on, but is willing to stay. Of course, Paul was not trying to use every opportunity to seek out death either, and many of those mentioned in the excerpt definitely have issues with mental health.

I would disagree with the author’s categorization of “adrenaline junkies.” People will always see that differently. I have been skydiving, and I am a hang-glider pilot. In many people’s minds, that puts me firmly in that category, because most of them do not understand the preparations that go into doing those activities, and would not consider them safe or appropriate, no matter what precautions are taken. I don’t think I’ve ever met another HG pilot who is just blindly attempting things without the “knowledge or foresight” to do so safely. But that activity will always be seen in that way by most (try shopping for insurance — most companies don’t get it either). While I can’t speak for all “adrenaline” sports on the basis of one sport, I just haven’t met anyone attempting HG in order to tempt death.

I’m sure that people who tempt death may exist (though not for long), but from what is in scripture, I can’t see carelessness as a “mortal” sin, which appears to be the substance of the OP’s question. The Bible doesn’t put that in the category of unforgiveable sins. However, the desire to die, while abnormal from a human point of view, cannot always be said to be wrong.