For most people actively contemplating suicide, the rational validity of _any_ approach is orthogonal to their decision-making process. Even if the parent comment "made sense", I doubt it's helpful to most people in that position.

The comment about morality / rationality was just a reservation of agreement, on a point that I'm saying isn't actually pertinent to the parent comment's stated audience. I wouldn't pretend for a moment that I've offered anything like an argument on morality.