In my opinion, there's nothing wrong with OP's post at all, they were just sharing their experience, which is perfectly reasonable and there are people such as myself who are interested to hear about failed attempts, there is much that may be learned.
I don't sense that OP was intending to exacerbate fears, personally. OP may be lying, but you could say that about literally any other post, you either take them at their word or you don't, there's an element of faith to all of this.
I understand that some people don't like to hear about failed attempts, as it heightens their fears and maybe erodes their faith in the method. But those are your personal feelings, and you should remember that the SN method, when carefully and properly executed, is tried and true.
As for frustrations with OP's desire to "suffer but not die", please remember that emotions and feelings are extremely complex, and they don't lend themselves to logic at all. None of us behave perfectly logically all the time, and just because we can't understand OP's motivations doesn't mean that they weren't genuinely felt.
It's not all going to be success stories, some of us are going to fail, because life is extremely complicated, and we are very error-prone creatures. I think that we should try to be sympathetic.